Fifty years after Frank Robinson became the first Black manager in Major League Baseball, the league is struggling with a significant decline in Black players and leaders

As Black History Month begins Feb. 1 and Major League Baseball celebrates the making his debut as the first Black manager, the sport is at a point of introspection with the lowest number of African Americans players in

The milestone is both a reminder of how far baseball came since segregation and how delicate inclusion efforts are in baseball and other institutions in the United States.

As the United States emerged from World War II, and continued to keep the country largely segregated. The war, however, was also a turning point for African Americans, who demonstrated that their service was of equal value to others who fought in the war.

One such soldier was Jackie Robinson, the first athlete to letter in . His teammates broke the color barrier in the NFL in 1946, while —seven years before determined that “separate but equal” thresholds for segregation were unconstitutional. Jackie Robinson’s last season as a player was 1956, the same season a young Frank Robinson debuted with the Cincinnati Reds.

In 1972, the Reds played the Oakland Athletics in the World Series. By that point, Frank Robinson had been traded twice and spent the season playing for Jackie Robinson’s former team, the Dodgers.

During Game 2 of the series in Cincinnati, . During his speech accepting the honor, , an opportunity he never got despite his expressed desire to manage a team. Jackie Robinson died nine days after his speech—Oct. 24, 1972—never seeing Frank Robinson hired as the first Black player-manager two years later.

during the 1974 season after openly campaigning for the manager position with the Dodgers. Cleveland was the first American League team to sign a , and broke ground again 28 years later by hiring Robinson. He was the first player to win MVP in both the National and American League, but had a rocky tenure with the team, often being pushed to play when he wanted to focus on managing and . He did lead the team to its first winning record in eight years in 1976, the last season he played, before being fired during the following season.

Inclusive Sports Summit

We change the game: Embracing the value of inclusive sports and recreation

When: 9 a.m.-6:30 p.m. Wednesday, Feb. 5

Where: Dal Ward Athletic Center and Main Student Recreation Center

During this summit participants will

• Identify challenges, opportunities and best practices for advancing diversity, equity and inclusion work as practitioners and supporters.
• Learn tangible takeaways to build bridges and build unity across similarities and differences.
• Build skills and practice techniques for addressing inequities to help increase student retention, engagement and success.
• Connect with departments and programs across campus that are available to support students, staff and faculty.

The Inclusive Sports Summit is free and open to faculty, staff, students and community members.

Robinson went on to manage the San Francisco Giants and his former team, the Baltimore Orioles, winning manager of the year in 1989. He was fired from the Orioles during the 1991 season—the year Major League Baseball had the highest percentage of African American players in the league, 18% of all players. The following season, to win a World Series.

Robinson continued to work in the league office after his time with the Orioles, returning to the dugout after being tapped by , which the league owned at the time. The team moved to Washington D.C. in 2005 and his final season as manager was the first season for the newly founded Washington Nationals.

Declining youth participation

The dearth of opportunities for African Americans to coach and assume leadership positions in sports is not new; however, baseball has seen the most precipitous drop in participation, .

Contributing to this drop is the lack of African Americans in leadership positions, with only two African American managers, , and one ). In spite of these paltry numbers, three of the last five World Series winners have been

The numbers are even worse in college baseball, with ; of these 26 managers, 17 were from historically Black colleges and universities (HBCUs). The lack of visible leadership affects scouting, mentorship and even participation when players cannot see a career in the sport they love if they do not make it to the major leagues.

The low numbers of African American athletes in the college pipeline to the major leagues is only one of the reasons for the continued decline of African Americans in professional baseball. Like many sports, the privatization of youth sports is forcing many lower- and even middle-income families to reconsider their . Local governments and schools have slashed recreation and athletic budgets, leading to more expensive sports like baseball to be cut, which in turn leads to a higher reliance on private leagues.

Many families ultimately balk at the cost of playing baseball, steering their children into more accessible sports as . The relatively low number of Division I 13 maximum scholarships across This also leads some families to encourage their children to focus on other sports to earn a college scholarship.

Even if amateur baseball players get drafted and signed, minor league salaries are so low that the same issues can arise that exist in youth baseball: players who cannot afford to remain in the sport. Minimum salaries are between just under , when minor league players unionized and negotiated a raise from a minimum salary between $4,800 and $17,500.

Salary expectations have led many scouts to focus on international players, particularly from Latin America, where teams will make verbal agreements with children as in spite of the fact that teams . MLB turns a blind eye to these agreements that often push children as young as 10 from countries like the Dominican Republic to leave school to pursue baseball. These players may be given performance-enhancing drugs to make them look more mature and artificially improve their athleticism. These players are ripe for exploitation, including lower salaries since they are beholden to Major League clubs with which they make these “handshake” deals—while their families take out  loans based on future earnings, . 

Hope for long-term results

Economics and leadership are not the only factors in the decline of African Americans in professional baseball. The sport has declined as “America’s pastime” for decades, and for many is considered less “cool” than sports due to its slower pace—as well as kids’ alternative activities in the summer months—leading to a drop in viewership, .

African Americans have also been historically discouraged from playing certain positions, particularly the on-field leadership positions of catcher and pitcher, the latter of which is the most visible position in the sport. has historically impacted all sports, including basketball ( and football due to discriminatory and false assumptions that African American players were not intelligent enough to play those positions. Basketball and football have seen dramatic shifts at these positions while baseball still sees limitations for

As with viewership, some of the issues pushing African Americans from baseball are emblematic of the decline in baseball’s overall popularity. However, there are some glimmers of hope for the future of African Americans in the sport. The House v. NCAA settlement will allow schools to increase the number of student athlete scholarships up to the roster limit, which is 34 in Division I—

The opportunity to earn compensation directly from schools may also support continued involvement in the sport. Much like , however, revenue sharing will disproportionately go to the top-earning sports: .

Outside of the college ranks, MLB has been actively involved in a number of initiatives to try to increase participation among young players, including that was started in 1989 and is now sponsored by Nike. Players like Jimmy Rollins and recent Hall of Fame inductee C.C. Sabathia are both alumni of the program, but results have been less impactful in recent years with fewer alumni from the United States advancing to professional baseball. , a training academy focused on African American pitchers and catchers, in conjunction with USA Baseball during the Martin Luther King Jr. holiday. , named for the Hall of Fame player, is a round-robin tournament for HBCU baseball programs that runs every year at the Jackie Robinson Training Complex in Florida.

There is hope these efforts will yield long-term results and reverse the decline of African American players in baseball. The sport still needs to address its in the United States and the lack of African American mentors and leaders in the sport, but some of the structures are there to encourage a renaissance of great Black baseball figures 50 years after Frank Robinson broke the managerial glass ceiling.

Jared Bahir Browsh is an assistant teaching professor of critical sports studies in the CU Boulder Department of Ethnic Studies.

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The success of simulcasts means that fans can expect to see more creative takes on traditional sports, including SpongeBob SquarePants calling Saturday’s NFL Wild Card game

As the final seconds of Super Bowl LVIII ticked off, according to social media, the biggest star was not MVP Patrick Mahomes, Travis Kelce or even Taylor Swift; it was a sea sponge and his starfish best friend. l starring SpongeBob SquarePants and Patrick Star as commentators was a huge hit, with on-field graphics and animations featuring Nickelodeon stars and, of course, slime.

This was not the first time a media conglomerate aired or streamed a simulcast as a companion to its main broadcast to attract more fans. ESPN’s first basic simulcast was in 1987 after the network gained partial rights to the NFL—the first cable network to air the NFL—agreeing to simulcast the game on . When ESPN2 launched in October 1993, it offered a second ESPN network to sports fans and within a year ran its first alternative broadcast, bringing in-car views to .

Jared Bahir Browsh is the Critical Sports Studies program director in the CU Boulder Department of Ethnic Studies.

In 2006, the network created later renamed the Megacast, leveraging the popular basketball rivalry between Duke University and the University of North Carolina to offer local broadcasts and alternative camera views for the game. The previous year, ESPN had launched its college-focused ESPNU and ESPN360, its broadband broadcast service, and used these newer platforms along with its .

ESPN offered statistics and other data on its high-definition networks, which were still separate from the standard-definition networks, and even offered polling through ESPN mobile before social media exploded.

These simulcasts and “Megacasts” aimed to give dedicated fans a more in-depth look at the game or event that was being broadcast. At the same time, leagues and sports broadcasters were looking for different ways to attract young and casual fans who enjoyed sports but were not the obsessive fans at which these Megacasts were targeted.

Courting younger fans

For a long time, leagues took young fans for granted, In today's expanding media environment, young and casual fans have infinite options for entertainment, so leagues and their broadcasting partners have had to strategize new ways to attract new audiences.

One of these efforts debuted in 1973: Peter Puck, an anthropomorphic hockey puck created by NBC executive Donald Carswell and animated by Hanna Barbera. NBC had just obtained the rights to the NHL, which was struggling to grow its audience in the United States. Carswell thought Peter would be a great way to teach U.S. audiences the rules of professional hockey through three-minute shorts between periods. Although NBC stopped airing the NHL in 1975,

The 1980s brought a sea change for sports as cable and improved marketing began to create the enormous sports media environment we experience today. As networks competed for viewers, sports became a reliable form of entertainment to attract audiences who had more choices than ever. As football continued to dominate the sports landscape, buffered by the 1984 Supreme Court decision to allow college football broadcasting to , other leagues strategized to draw fans to television, stadiums and arenas.

Throughout the 1970s, teams had built larger stadiums and debuted mascots like the to entertain fans. The following decade, as the NBA struggled to find a broadcaster to air its championship games live, David Stern—who took over the league as commissioner in 1984— the NBA experience, making attending games more family friendly with more timeout and halftime entertainment.

It just so happened that same year that the most marketable athlete of all time came into the league. Michael Jordan was not only a boon for adult basketball fans, but also kids who wanted to In 1992, Jordan co-starred with Bugs Bunny in the Nike advertising campaign He retired the next year to play baseball before returning to the NBA in March 1995. The following summer, Bugs and Jordan reunited to film which grossed more than a quarter of a billion dollars after it premiered early into the NBA season in November 1996.

As a part of this effort to draw new fans, leagues also produced shows aimed at younger fans like which debuted in 1980 and featured MLB players and managers teaching baseball fundamentals. Ten years later, “premiered on NBC’s Saturday morning schedule, joining a growing sports media industry aimed at kids that included publications like Sports Illustrated for Kids and video games like the Madden, FIFA and NBA 2k series, among the most popular video game series of all time.

Primetime slimetime

The consolidation of the U.S. media system throughout the 1980s and 1990s led to massive media conglomerates. Unsurprisingly, NBC held the network broadcast rights for the NBA when “NBA Inside Stuff” aired. As broadcast and cable networks came under the same corporate umbrella as film and animation studios, new opportunities for cross promotion emerged. Disney bought ESPN and opened the , named after the anthology series that aired under one of their other subsidiaries, ABC, from 1961 until 1997     . Disney also founded an NHL team, , in 1993—named after the popular 1992 kids hockey movie—and in 1996 debuted “ on ABC, which featured anthropomorphic hockey playing superhero ducks.

The success of Space Jam and the continued media conglomeration strengthened the relationship between animation and sports. NASCAR rights holder FOX debuted an animated action series featuring NASCAR branding, a day before the 1999 race season finale. Cartoon Network aired the marathon in 2003, featuring interstitial interviews with NBA players in the lead-up to the All-Star Game, which aired the evening of the game on TNT (both networks were owned by Warner subsidiary Turner).

In 2016, appeared on the Cartoon Network series the same night as a TNT basketball doubleheader and a few days before the All-Star Game. Later, the of the 2023 NBA Slam Dunk Contest in the lead-up to the NBA All-Star Game airing on TNT.

Although these series and specials expanded the visibility of league branding and special events, the engagement with actual games was limited. When Viacom and CBS merged again in 2019, after splitting 14 years earlier, they began strengthening the relationship between former Viacom network . They began featuring Nickelodeon content on CBS All-Access, now Paramount+, and in 2021 Nickelodeon aired an between the Chicago Bears and New Orleans Saints featuring Nickelodeon live-action and animated stars joining the real-time NFL broadcast with alternate announcers Nate Burleson and Noah Eagle. Current Denver Broncos coach , similar to the traditional Gatorade shower.

The following season, premiered on Nickelodeon, a highlight show hosted by Burleson that strengthened the relationship between the NFL and Nickelodeon. This relationship exploded during last years’ Super Bowl as the Nickelodeon simulcast on the cable network and Paramount+ was credited for a growth in game viewership, especially among younger and casual fans who appreciated the

A pineapple under the arena

As media conglomerates continue to leverage sports rights to attract audiences and increase subscriptions to their streaming services, they have also leaned into the popularity—and meme-making possibilities—of these simulcasts. Several months after the Nickelodeon simulcast of the Wild Card Playoff, Disney leveraged its Marvel Cinematic Universe to produce a simulcast, on ESPN2 and its streaming service, which was similar to the Wild Card game on Nickelodeon and featured special graphics and superhero-themed content related to the real-time NBA games between the Golden State Warriors and New Orleans Pelicans. the company behind augmented games like the Arena of Heroes simulcast, extended their contract in the summer of 2024.

In 2023, Disney aired its own fully animated simulcasts with the NHL broadcast in March and the Toy Story-themed NFL game in September. Both regular-season games included a rendering of the real-time broadcasts featuring stars from its animated franchises. Disney followed this up in December 2024 with another featuring “The Simpsons” and the Christmas Day animated simulcast featuring classic characters like Mickey Mouse and Donald Duck. In between these two games, NBC’s Peacock service offered an alternate stream of the game between the Kansas City Chiefs and Houston Texans featuring graphics from the

As SpongeBob and Patrick prepare to announce the Nickelodeon simulcast of the 2025 NFL Wild Card game between the Houston Texans and Los Angeles Chargers Saturday, fans should be prepared for more of these simulcasts as networks and streaming services try to market these games to young and casual fans, boosted by social media memes like   and .

Jared Bahir Browsh is an assistant teaching professor of critical sports studies in the CU Boulder Department of Ethnic Studies.

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Wildfire smoke’s health risks can linger in homes that escape burning—as Colorado’s Marshall Fire survivors discovered

On Dec. 30, 2021, a raced through two communities just outside Boulder, Colorado. In the span of about eight hours, and businesses burned.

The fire left entire blocks in ash, but among them, , seemingly untouched. The owners of these homes may have felt relief at first. But fire damage can be deceiving, as many soon discovered.

When wildfires like the Marshall Fire reach the , they are burning both vegetation and human-made materials. Vehicles and buildings burn, along with all of the things inside them—electronics, paint, plastics, furniture.

Research shows that when human-made materials like these burn, from what is emitted when just vegetation burns. The smoke and ash can blow under doors and around windows in nearby homes, bringing in chemicals that stick to walls and other indoor surfaces and continue off-gassing for weeks to months, particularly in warmer temperatures.

In a , my colleagues and I looked at the health effects people experienced when they returned to still-standing homes. We also created a in the future to help them protect their health and reduce their risks when they return to smoke-damaged homes.

Tests in homes found elevated metals and VOCs

In the days after the Marshall Fire, residents quickly reached out to nearby scientists who study wildfire smoke and health risks at the University of Colorado Boulder and area labs. People wanted to know what was in the ash and .

In homes we were able to test, my colleagues found . We also found elevated VOCs – volatile organic compounds – in airborne samples. Some VOCs, such as , , and , can be toxic to humans. Benzene is a .

People wanted to know whether the chemicals that got into their homes that day could harm their health.

At the time, we could find no information about physical health implications for people who have returned to smoke-damaged homes after a wildfire. To look for patterns, we affected by the fire six months, one year and two years afterward.

Symptoms six months after the fire

Even six months after the fire, we found that that aligned with health risks related to smoke and ash from fires.

More than half (55%) of the people who responded to our survey reported that they were experiencing at least one symptom six months after the blaze that they attributed to the Marshall Fire. The most common symptoms reported were itchy or watery eyes (33%), headache (30%), dry cough (27%), sneezing (26%) and sore throat (23%).

All of these symptoms, as well as having a strange taste in one’s mouth, were associated with people reporting that their home smelled differently when they returned to it one week after the fire.

Many survey respondents said that the smells decreased over time. Most attributed the improvement in smell to the passage of time, cleaning surfaces and air ducts, replacing furnace filters, and removing carpet, textiles and furniture from the home. Despite this, many still had symptoms.

We found that living near a large number of burned structures was associated with these health symptoms. For every 10 additional destroyed buildings within 820 feet (250 meters) of a person’s home, there was a 21% increase in headaches and a 26% increase in having a strange taste in their mouth.

These symptoms align with what could be expected from exposure to the chemicals that we found in the ash and measured in the air inside the few in depth.

Lingering symptoms and questions

There are a still a lot of unanswered questions about the health risks from smoke- and ash-damaged homes.

For example, we don’t yet know what long-term health implications might look like for people living with lingering gases from wildfire smoke and ash in a home.

We found a significant reporting symptoms one year after the fire. However, 33% percent of the people whose homes were affected still reported at least one symptom that they attributed to the fire. About the same percentage also reported at least one symptom two years after the fire.

We also could not measure the level of VOCs or metals that each person was exposed to. But we do think that reports of a change in the smell of a person’s home one week after the fire demonstrates the likely presence of VOCs in the home. That has health implications for people whose homes are exposed to smoke or ash from a wildfire.

Tips to protect yourself after future wildfires

Wildfires are as the wildland-urban interface, and fire seasons lengthen.

It can be confusing to know what to do if your home is one that survives a wildfire nearby. To help, my colleagues and I put together a if your home is ever infiltrated by smoke or ash from a wildfire.

Here are a few of those steps:

• When you’re ready to clean your home, start by protecting yourself. Wear at least an N95 (or KN95) mask and gloves, goggles and clothing that covers your skin.
• Vacuum floors, drapes and furniture. But avoid harsh chemical cleaners because they can react with the chemicals in the ash.
• Clean your HVAC filter and ducts to avoid spreading ash further. Portable air cleaners with carbon filters can help remove VOCs.

documents how within a home can reduce reservoirs of VOCs and lower indoor air concentrations of VOCs.

Given that we don’t know much yet about the health harms of smoke- and ash-damaged homes, it is important to take care in how you clean so you can do the most to protect your health.

Colleen E. Reid is an associate professor in the  Department of Geography.

This article is republished from  under a Creative Commons license. Read the .

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We developed a way to use light to dismantle PFAS ‘forever chemicals’–long-lasting environmental pollutants

, have earned the nickname of from their extraordinary ability to stick around in the environment long after they’ve been used.

These synthetic compounds, commonly used in consumer products and industrial applications for their water- and grease-resistant properties, are now found practically everywhere .

While many chemicals will degrade after they’re disposed of, PFAS for up to 1,000 years. This durability is great for their use in firefighting foams, nonstick cookware, waterproof clothing and even food packaging.

However, their resilience means that they persist in soil, water and even living organisms. They can accumulate over time and of both ecosystems and humans.

Some initial research has shown potential links between PFAS exposure and various — including cancers, immune system suppression and hormone disruption. These concerns have led scientists to search for these stubborn chemicals.

We’re a team of researchers who developed a chemical system that uses light to break down bonds between carbon and fluorine atoms. These strong chemical bonds help PFAS resist degradation. We in November 2024, and we hope this technique could help address the widespread contamination these substances cause.

Why PFAS compounds are so hard to break down

PFAS compounds have carbon-fluorine bonds, one of the strongest in chemistry. These bonds make PFAS incredibly stable. They resist the degradation processes that usually break down industrial chemicals – , and microbial breakdown.

Conventional water treatment methods , but these processes merely concentrate the contaminants instead of destroying them. The resulting PFAS-laden materials are typically sent to landfills. Once disposed of, they can still leach back into the environment.

for breaking carbon-fluorine bonds depend on use of metals and very . For example, can be used for this purpose. This dependence makes these methods expensive, energy-intensive and challenging to use on a large scale.

How our new photocatalytic system works

The new method our team has developed uses a . A photocatalyst is a substance that speeds up a chemical reaction using light, without being consumed in the process. Our system harnesses energy from cheap blue LEDs to drive a set of chemical reactions.

After absorbing light, the photocatalyst to the molecules containing fluorine, which breaks down the sturdy carbon-fluorine bonds.

By directly targeting and dismantling the molecular structure of PFAS, photocatalytic systems like ours hold the potential for complete mineralization. Complete mineralization is a process that transforms these harmful chemicals into harmless end products, like hydrocarbons and fluoride ions, which degrade easily in the environment. The degraded products can then be safely reabsorbed by plants.

Potential applications and benefits

One of the most promising aspects of this new photocatalytic system is its simplicity. The setup is essentially a small vial illuminated by two LEDs, with two small fans added to keep it cool during the process. It operates under mild conditions and does not use any metals, which are to handle and can sometimes be explosive.

The system’s reliance on light – a readily available and renewable energy source – could make it economically viable and sustainable. As we refine it, we hope that it could one day operate with minimal energy input, outside of the energy powering the light.

This platform can also transform other organic molecules that contain carbon-fluorine bonds into valuable chemicals. For instance, thousands of are commonly available as industrial chemicals and laboratory reagents. These can be transformed into building blocks for making a variety of other materials, including medicines and everyday products.

Challenges and future directions

While this new system shows potential, challenges remain. Currently, we can degrade PFAS only on a small scale. While our experimental setup is effective, it will require substantial scaling up to tackle the PFAS problem on a larger level. Additionally, large molecules with hundreds of carbon-fluorine bonds, like Teflon, do not dissolve into the solvent we use for these reactions, even at high temperatures.

As a result, the system currently can’t break down these materials, and we need to conduct more research.

We also want to improve the long-term stability of these catalysts. Right now, these organic photocatalysts degrade over time, especially when they’re under constant LED illumination. So, designing catalysts that retain their efficiency over the long term will be essential for practical, large-scale use. Developing methods to regenerate or recycle these catalysts without losing performance will also be key for scaling up this technology.

With our colleagues at the , we plan to keep working on light-driven catalysis, aiming to discover more light-driven reactions that . SuPRCat is a -funded nonprofit Center for Chemical Innovation. The teams there are working to develop reactions for more sustainable chemical manufacturing.

The end goal is to create a system that can remove PFAS contaminants from drinking water at purification plants, but that’s still a long way off. We’d also like to one day use this technology to clean up PFAS-contaminated soils, making them safe for farming and restoring their role in the environment.

Arindam Sau is a Ph.D. candidate in the  Department of Chemistry; is a postdoctoral associate in chemistry at Colorado State University; is a postdoctoral scholar in chemistry at Colorado State University.

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Apparently, herbivores are not fond of chewing sandpaper

Sand verbena, Abronia fragrans, has a moth pollination syndrome, or a suite of floral characters modified by natural selection driven by moth pollination. Its flowers are open all night but closed all day, and long corolla tubes prevent bees from taking nectar but are ideal for moths with long tongues.

Moths follow plumes of floral fragrance from sand verbena until they are within sight of the bright, conspicuous white globes of 25 to 80 flowers, where they sip a nectar reward.

Although sand verbena has a large geographic range, it is limited to sandy habitats in Texas, New Mexico, Arizona, Utah, Colorado, Oklahoma, Kansas, Wyoming, Montana, Nebraska, South Dakota and North Dakota. While sand verbena is described as having white flowers that open only at night, populations in northern Texas and southwestern Oklahoma have a range of flower colors from light pink through fuchsia, and they also differ from most populations in the times that flowers open and close.

The plants with pink or fuchsia flowers remain open until late morning, and they reopen in early evening, allowing considerable visitation by bees and butterflies. Measurements of pollination success in the pink and fuchsia populations showed that diurnal or daytime pollination contributed 18% of the pollination success, in contrast to nothing at all in the remainder of the geographic range of the species.

These data are consistent with the hypothesis that diurnal pollinators were a selective force producing and maintaining novel flower color and diurnal presentation of open flowers in the mornings and late afternoons. The long corolla tubes frustrate bee efforts to collect pollen or nectar but hold nectar available to virtually all butterflies.

Butterflies are visiting diurnally—the most common among them is the skipper Lerodea eufala, the Eufala skipper. These data and other observations suggest the hypothesis that the Eufala skipper applied selective pressure to change flower color from white to pink or fuchsia and to modify the times that flowers open and close.

How could a butterfly apply selection pressure? This terminology unintentionally suggests that the butterflies had a plan and the organization to apply it. But that was not the case. If some flowers did not close exactly at sunrise and if a small butterfly pollinated them, enhancing their seed set, the genes that influenced tardy closing of flowers would become more common in the next generation.

The butterfly did nothing more than sip nectar from a large globe of flowers, nor did the sand verbena do anything to achieve an intended goal. The metric of natural selection is the relative number of offspring produced by competing genotypes of sand verbena. Genes that had been rare produce more seeds, making those genes more common.

Sand verbena is in the genus Abronia, which has about 20 species, all in North and Central America. All thrive in sandy environments, and it is known that 14 of the 20 species have psammophory, a defense to herbivory that is more commonly called sand armor. The armor is assembled when wind-blown sandy grit adheres to sticky exudates on stems and leaves.

I first encountered psammophory when photographing dwarf lupine in the Maze in Canyonlands National Park, and since then I thought it was a rare defense. But a scientific article whose title begins with "Chewing sandpaper" lists more than 200 psammophorous species in 88 genera in 34 families.

Sand armor is not a rare defense; it is geographically widespread and has evolved many times. Experimental studies show that sand armor reduces herbivory—remove it from stems and leaves, and the plant suffers more herbivory than when the armor was intact. Add more sand, and the plant suffers less herbivory.

While sand verbena has a large geographic range, some species of Abronia have tiny geographic distributions. One example is Yellowstone sand verbena, A. ammophila, which is adapted to and endemic (found nowhere else) to the lake shores in Yellowstone National Park.

An obligate relationship was found recently when a new species of moth, Copablepharon fuscum, was discovered in 1995 on the shores of the Salish Sea between Georgia Straight and Puget Sound. The sand-verbena moth was found on just a few beaches and spits on Vancouver Island and Whidbey Island, and it only occupies sites with windblown sand and large and dense populations of A. latifolia, yellow sand verbena, which is found along Pacific Shores from Baja to British Columbia.

The sand-verbena moth uses yellow sand verbena as its host plant, meaning that it is the site of oviposition and the sole food consumed by the caterpillars. The caterpillars have specialized mouth parts allowing them to manipulate around grains of sand.

I know I will never see a sand verbena nor a dwarf lupine without the phrase "chewing sandpaper" popping into my thoughts.

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Sixty years after the debut of the Rudolph the Red-Nosed Reindeer stop-motion animated classic, the yearly flood of holiday films can thank the small reindeer for their success

As we spend the Christmas season binging on , one diminutive reindeer has been part of Christmas media longer than any other figure.

Rudolph the Red-Nosed Reindeer was created as a coloring book in 1939 by Robert L. May for Montgomery Ward when the retailer decided to produce its own coloring books after distributing books from other publishers for years. May faced pushback on the story, since red noses were associated with drinking at the time, but ultimately Montgomery Ward distributed more than 2 million copies of the story that .

Jared Bahir Browsh is the Critical Sports Studies program director in the CU Boulder Department of Ethnic Studies.

The first Rudolph cartoon debuted in 1948, directed by . The next year, the famous song written by May’s brother-in-law Johnny Marks debuted behind the vocals of Gene Autry, hitting number one—the first top song of 1950 that was added to Fleischer’s cartoon when it was reissued in 1951.

Autry’s beloved version of “Rudolph the Red-Nosed Reindeer” sold more 1.75 million copies in 1949 alone, and altogether Autrey’s and every other version of the song have behind only Bing Crosby’s “White Christmas” in total Christmas song sales. It is also the only No. 1 song to fall completely off the charts the week after it peaks.

receiving a writing credit after suing for trademark infringement. Autry also wrote and sang

The growth of the recording industry after World War II was part of a larger post-war economic boom in the United States that supported the increased commercialization of Christmas, which had started a century earlier with depictions of Santa in the 1840s and his first in-store appearance at the His appearance in the first Macy’s Thanksgiving Day Parade in 1924 was thought to kick off the holiday shopping season, with his modern image confirmed by A decade later, Rudolph joined Santa on his sleigh as a Christmas icon.

Stop-motion animation

In the first 25 years after May created Rudolph, the reindeer with the light-up nose became a multimedia legend, inspiring comic and children’s books in addition to the original coloring book and 1948 cartoon. But the small animation studio Rankin/Bass—founded as Videocraft and going by that name until 1974, when it rebranded as Rankin/Bass— and produced the longest continuously running Christmas special in United States television history.

The unique stop-motion animation style Rankin/Bass used was called and his MOM Production Studio. The process debuted in the United States in 1961 in a syndicated series called The New Adventures of Pinocchio, but the helped the stop-motion animation approach become legendary. Rankin/Bass was one of the earliest studios to outsource its animation to Japan, which became common practice in .

Since its debut in 1964, the Rudolph special has gone In 1965, the song “Fame and Fortune” was added, to the chagrin of fans of the original; the song and the scene were removed and Santa’s visit to the Island of Misfit Toys was added in 1966. 

Since its debut Dec. 6, 1964, Rudolph the Red-Nosed Reindeer has gone through a number of edits. (Image: Rankin/Bass)

Yukon Cornelius’ visit to the peppermint mine was also edited out of the original and would not return until 2019, when the network Freeform obtained the rights to this and several other Rankin/Bass specials as a part of its .

Rudolph the Red-Nosed Reindeer aired on NBC, its original network, until 1971, when , which it held until 2023. For the film’s 60th anniversary this year, NBC will air the full film in a 75-minute broadcast on Dec. 6, the same date the original debuted in 1964. Unlike other Christmas specials, the film is not available as a part of any streaming service and must be purchased to view it outside the

The stop-motion Rudolph film not only became an instant classic, but also led to a wave of classic Christmas visual media in television and film. A Charlie Brown Christmas debuted in 1965, followed in 1966 by the animated How the Grinch Stole Christmas!, which was adapted from the 1957 Dr. Seuss book. Rankin/Bass would continue to produce holiday specials, including traditionally animated specials based on the Charles Dickens Christmas novella The Cricket on the Hearth (1967) and The Mouse on the Mayflower (1968), a Thanksgiving special.

The studio’s greatest successes, however, were its specials based on popular holiday songs and traditional stories. Later in 1968, The Little Drummer Boy debuted, a stop-motion special based on the song written in . The song became a holiday standard in the United States through the later version by The Harry Simeone Chorale, who also recorded the popular version of “. “The Little Drummer Boy” was also covered by Frank Sinatra and Bing Crosby with David Bowie.

The film The Little Drummer Boy is fairly dark for an animated special of the time, featuring the drummer boy Aaron’s family being murdered before he is kidnapped, forced to perform and escaped to join the .

A holiday deluge

Rankin/Bass studio produced Frosty the Snowman in 1969, which was drawn to look like a Christmas card. (Image: Rankin/Bass)

In subsequent years, Rankin/Bass continued to produce specials that became staples of various holidays, including the traditionally animated The studio also produced a number of other stop-motion specials, including and . The partnership between Arthur Rankin Jr. and Jules Bass resulted in more than two dozen holiday specials and numerous other films and series, including the .

What used to be special, sprinkled throughout late November and December, has become a massive media industry leading to most regularly scheduled series taking a as a torrent of holiday specials and sporting events dominate television from Thanksgiving through the college football bowl season in January. The holiday season is now overrun by a collection of animated specials, holiday episodes and cheesy rom-coms. The latter of these were popularized by Hallmark, which has been sponsoring specials for broadcast since 1951, making what is now known as the the longest-running anthology series on television.

Hallmark’s low-budget holiday specials have been a staple of the holidays since 2000 and dramatically increased when . Since then, the channel, which has grown in popularity over the last two decades, has produced more than 300 holiday specials created around formulaic narratives largely focused on family-appropriate romance. Other media outlets, including Lifetime Network and Netflix, have also joined this trend, leading to a deluge of specials of varying quality dominating the holiday season.

However, many of these specials rooted in nostalgia and familiar formulas can thank Santa’s ninth reindeer for using his shining nose to lead the way in establishing our holiday watching habits.

Jared Bahir Browsh is an assistant teaching professor of critical sports studies in the CU Boulder Department of Ethnic Studies.

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Flower was once thought to repel fleas, a belief long-since debunked

According to the U.S. Drought Monitor, Boulder County was in severe drought in September and the beginning of October this year. On Oct. 14, I went up on Flagstaff Mountain to see what was blooming and to check the condition of some small cacti, Missouri foxtails.

The foxtails were shriveled and seemed to be shrinking into the earth, a common plight for cacti in drought conditions. But my attention quickly shifted to some delicate daisies—these were the only flowers blooming in the prolonged drought.

The flowering species was flowering was Erigeron flagellaris. The plants were about 8 inches tall and had the typical daisy bloom with numerous slender, white petals radiating from a central yellow disc. Erigeron is a large genus in the family Asteraceae, commonly called composites, because each of the blooms is a composite of yellow disc florets in the center and white ray florets radiating.

Each "petal" is a ray floret, a flower that is solely female and fertile. Each of the disc florets is bisexual and fertile. An E. flagellaris bloom has 40 to 125 ray florets and even more disc florets.

In addition to seeds produced by both ray and disc florets, E. flagellaris reproduces asexually by producing stolons, stems that grow horizontally, touching ground at each node.

Erigeron flagellaris, or trailing fleabane, flowers and their mature seeds (Photo: Jeff Mitton)

Contact with the ground stimulates a node to grow a new cluster of roots that support the growth of upright stems, leaves and more flowers. This asexual reproduction creates a spreading clone that, under the best of conditions, resembles a mat. The proliferation of stolons suggests its common names, trailing fleabane and whiplash fleabane. Strawberry plants also spread with stolons, but gardeners usually call them runners.

The genus Erigeron has about 200 species, many of them in North America and all with the common name fleabane. The name, originally from Old English and first used in 1548, comes from the belief that the plant's smell would repel fleas from a dwelling. Plants were either burned or hung in sachets. Both belief and practice were dispelled long ago—fleabanes do not banish fleas.

The Navajo were resourceful at finding preparations of plants that had practical uses for dyes and medicines, and they found a way to use the astringent properties released from crushed leaves of trailing fleabane. They would chew the leaves and then place the moist pulp directly on wounds to stop the bleeding.

Description of the scent of trailing fleabane is elusive. The website Southwest Colorado Wildflowers lists citations in which the scent has been described as spicy, camphor-like, ill-scented, mysterious and downright weird. Chemical studies of fleabanes shows that their fragrances come from essential oils, volatile liquids containing chemical compounds synthesized by the plant.

I was not able to find a study of the essential oil of trailing fleabane, but several other fleabanes have been studied, and all reveal a bewildering diversity of biologically active compounds. For example, a study of the essential oil in E. floribundus, which has the common names tall fleabane and asthma weed, has 85 biologically active compounds. Concentrations of the various compounds differ among fleabane species that have been studied, resulting in a diversity of fragrances.

The constituents in essential oils are undoubtedly expensive to synthesize, but many studies have shown that they contribute to the defense of the plant against herbivores, microbes and fungi. I see a parallel between the essential oils of fleabanes and the resins of pines, firs and spruces.

In fact, limonene is a component of both essential oils and resins. Laboratory studies have shown effective defensive activity of limonene in the oil of E. floribundus, and populations studies have shown that mountain pine beetles eschew ponderosa pines with high levels of limonene.

In summer months, as people camp, hike and generally play in the mountains, one often hears comments about the pleasant fragrance of stands of ponderosa pine, or a spruce and fir forest. But I have never noticed the smell of fleabanes. It is a certainty that herbivores such deer and rabbits note the smell and shun the plants; it is the primary defense of daisies.

The essential oils extracted from several fleabane species can be purchased on the web, but I am sure that sniffing a concentrated concoction of biologically active chemicals from a bottle and nasally inhaling in a field of fleabanes would be different experiences. Let's remember to go fleabane sniffing next summer. 

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Evidence from Snowball Earth found in ancient rocks on Colorado’s Pikes Peak—it’s a missing link

Around 700 million years ago, the Earth cooled so much that scientists believe massive ice sheets encased the entire planet like a giant snowball. This global deep freeze, , endured for .

Yet, miraculously, early life . When the ice melted and the ground thawed, , eventually leading to life-forms we recognize today.

CU Boulder researchers Liam Courtney-Davies (left) and Rebecca Flowers (right), along with Colorado College colleague Christine Siddoway, have found that life endured during Snowball Earth.

The has been largely based on evidence from sedimentary rocks exposed in areas that and shallow seas, as well as . Physical evidence that ice sheets covered the interior of continents in warm equatorial regions had eluded scientists – until now.

In published in the Proceedings of the National Academy of Sciences, our team of geologists describes the missing link, found in an unusual pebbly sandstone encapsulated within the granite that forms Colorado’s Pikes Peak.

Solving a Snowball Earth mystery on a mountain

Pikes Peak, by the Ute people, lends its ancestral name, Tava, to these notable rocks. They are , which formed in a similar manner to a medical injection when sand-rich fluid was forced into underlying rock.

A possible explanation for what created these enigmatic sandstones is the immense pressure of an overlying Snowball Earth ice sheet forcing sediment mixed with meltwater into weakened rock below.

An obstacle for testing this idea, however, has been the lack of an age for the rocks to reveal when the right geological circumstances existed for sand injection.

We found a way to solve that mystery, using veins of iron found alongside the Tava injectites, near Pikes Peak and elsewhere in Colorado.

Earth was covered in ice during the Cryogenian Period, but life on the planet survived. (Illustration: )

Iron minerals contain very low amounts of naturally occurring radioactive elements, including uranium, which slowly . Recent advancements in allowed us to measure the ratio of uranium to lead isotopes in the iron oxide mineral hematite to reveal how long ago the individual crystals formed.

The iron veins appear to have formed both before and after the sand was injected into the Colorado bedrock: We found veins of hematite and quartz that both cut through Tava dikes and were crosscut by Tava dikes. That allowed us to figure out an age bracket for the sand injectites, which must have formed between 690 million and 660 million years ago.

So, what happened?

The time frame means these sandstones formed during the Cryogenian Period, from 720 million to 635 million years ago. The name is derived from “cold birth” in ancient Greek and is synonymous with climate upheaval and disruption of life on our planet – including Snowball Earth.

While the triggers for the extreme cold at that time are debated, prevailing theories involve , including the release of particles into the atmosphere that reflected sunlight away from Earth. Eventually, a may have warmed the planet again.

The Tava found on Pikes Peak would have formed close to the equator within the heart of an , which gradually over time and long tectonic cycles moved into its current northerly position in North America today.

Dark red to purple bands of Tava sandstone dissect pink and white granite. (Photo: Liam Courtney-Davies)

The origin of Tava rocks has been debated , but the new technology allowed us to conclusively link them to the Cryogenian Snowball Earth period for the first time.

The scenario we envision for how the sand injection happened looks something like this:

A giant ice sheet with areas of geothermal heating at its base produced meltwater, which mixed with quartz-rich sediment below. The weight of the ice sheet created immense pressures that forced this sandy fluid into bedrock that had already been weakened over millions of years. Similar to fracking for natural gas or oil today, the pressure cracked the rocks and pushed the sandy meltwater in, eventually creating the injectites we see today.

Clues to another geologic puzzle

Not only do the new findings further cement the global Snowball Earth hypothesis, but the presence of Tava injectites within weak, fractured rocks once overridden by ice sheets provides clues about other geologic phenomena.

Time gaps in the rock record created through erosion and can be seen today across the United States, most famously at the Grand Canyon, where in places, over a billion years of time is missing. Unconformities occur when a sustained period of erosion removes and prevents newer layers of rock from forming, leaving an unconformable contact.

Our results support that a Great Unconformity near Pikes Peak must have been formed prior to Cryogenian Snowball Earth. That’s at odds with hypotheses that attribute the formation of the Great Unconformity to by Snowball Earth ice sheets themselves.

We hope the secrets of these elusive Cryogenian rocks in Colorado will lead to the discovery of further terrestrial records of Snowball Earth. Such findings can help develop a clearer picture of our planet during climate extremes and the processes that led to the habitable planet we live on today.

Liam Courtney-Davies is a postdoctoral associate in the Department of Geological Sciences at the ; Rebecca Flowers is a CU Boulder professor of geological sciences. Christine Siddoway is a professor of geology at Colorado College.

This article is republished from  under a Creative Commons license. Read the .

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Fifty years after the famed ‘Rumble in the Jungle,’ Muhammad Ali is remembered not only as the heavyweight champ, but as a champion of civil rights

It is hard to imagine, but coming off of his more than three-year exile from boxing, Muhammad Ali spent four years regaining his position as the top heavyweight in boxing. He lost everything by —not just his boxing career and his promotional business, but also derailing his budding advertising and media career.

Ali was born in Louisville, Kentucky, winning the  before turning professional as a heavyweight. A myth emerged that he threw his gold medal into the Ohio River after returning to his home city as .

Jared Bahir Browsh is the Critical Sports Studies program director in the CU Boulder Department of Ethnic Studies.

His experiences negotiating racism and segregation as an Olympic hero would inform his outspoken approach to civil rights and make him a hero to millions across generations.

Ali won his first 20 professional matches—and became heavyweight champion—at age 22, defending the championship across nine challenges before he was stripped of his championship and exiled from the sport in 1966. He appealed his draft reclassification, which happened in spite of his dyslexia and his position as a conscientious objector. Other athletes who were draft-eligible were placed with National Guard units or protected by their teams, , so it was particularly curious that the most popular athlete in the country was reclassified and drafted.

Conscientious objector

, the boxer then known as Cassius Clay changed his name first to Cassius X and then to Muhammad Ali. He had , but did not reveal his conversion until he was secure in his boxing career after winning the championship. He fell out with Malcolm X after the civil rights leader left the Nation following revelation that leader Elijah Muhammad had children out of wedlock; Malcolm assumed Ali would support him, 

In 1966, to promote his fights and oversee the closed-circuit broadcasting of his fights. The Nation of Islam held many of the shares in Main Bout Inc., including through Ali’s manager, Jabir Herbert Muhammad, third son of the Nation’s leader; other shareholders included football legend Jim Brown. To help forge relationships, boxing promoter Bob Arum was included and after the company folded due to Ali’s arrest, 

Ali’s religious conversion and his perspective that America should not be involved in the Vietnam War led to his refusal to be inducted. He was arrested and convicted of breaking Selective Service laws, and he continued to protest the war as he appealed. His conviction was , although he returned to boxing in late 1970 as sentiment against him softened and boxing commissions granted Ali licenses to fight again. He fought three matches before the Supreme Court ruled in his favor,

As Frazier and Ali worked toward a rematch, a young boxer rose up the ranks after winning the heavyweight gold medal at the 1968 Mexico City Olympic Games. George Foreman entered the fight against Joe Frazier at 37-0, . Ali also lost his second match, this time against Ken Norton, but after Foreman beat Norton,

Defending world champion George Foreman goes down in the eighth round during his Oct. 30, 1974, bout against Muhammad Ali in Kinshasa, Zaire. (Photo: Richard Drew/Associated Press)

King did not have the money on hand, and the huge monetary promise to both boxers led other promoters to avoid working with King to organize the event. King, who had been released from jail in 1972 after being convicted of second-degree murder, forged a relationship with Ali after promoting a charity fight, but was unable to come to agreement with any venue in the United States to stage the fight. As a result, he looked at other countries to stage it. Fred Weymar, who was an advisor to Zairean dictator Mobutu Sese Seko, convinced  support for his regime, . King also pulled in funding from , with Hemdale and Video Techniques Inc. as official co-promoters. Color commentators included Brown, Frazier and journalist David Frost.

Rumble in the Jungle

Promoted as the Rumble in the Jungle, the fight was an incredible spectacle, even by today’s sporting standards. Originally scheduled for Sept. 25, 1974 (it would have been broadcast Sept. 24 in the United States due to the time difference), it was pushed back to Oct. 30 due to a . A three-day music festival called , originally scheduled to precede the match, which included James Brown, Bill Withers, B.B. King, The Spinners and Celia Cruz alongside more than a dozen African artists.

Although Ali arrived in Zaire as a 4-1 betting underdog, he was the overwhelming favorite of the Zairean/Congolese people. , which was the dog breed used by the Belgian occupying forces against the Congolese people, further cementing his status as the villain. Foreman and Ali were polar opposites, with Ali seen by many as unpatriotic in America, but a hero in Africa. Foreman, on the other hand, represented Cold War nationalism after beating Soviet Jonas Čepulis in the 1968 Olympic gold medal match, leading to the famous image of the very large 

. Although the event itself did not go as planned—King assumed hundreds of high-profile boxing fans would travel to Zaire, but only a few dozen ended up making trip—the fight is seen as one of the greatest. The match  from closed-circuit broadcasts in U.S. theaters and other broadcasts rights globally, leading to an estimated audience of more than 500 million people worldwide.

The legendary status of the fight was cemented by Ali’s upset win against the younger and stronger Foreman. Ali and his trainers understood that he would be unable to outpunch Foreman, so they relied on Ali’s skill and speed. By the second, round Ali was leaning against the ropes, avoiding and absorbing blows with his arms and body, which did not earn Foreman points with the . Eventually, Foreman exhausted himself and Ali took advantage, knocking out the future grill entrepreneur in the eighth round.

In one of the most famous photos of Muhammad Ali ever taken, the boxer stands over Sonny Liston during a May 1965 bout in Lewiston, Maine. (Photo: John Rooney/Associated Press)

Approaching retirement

In his next bout, Ali fought Chuck Wepner and was knocked down in the ninth round, at least partially due to a light training schedule. Ali still won, and the fight would inspire Sylvester Stallone to write Rocky,

Ali retained the heavyweight title for more than three years, , the third match in the trilogy between Ali and Frazier that saw the champion employ the “rope-a-dope” again, as both fighters struggled in the heat of Quezon City, near the Philippine capital of Manila. Ali lost to Leon Spinks in February 1978 on a split decision, before beating 

Ali sent his letter of retirement to the World Boxing Association before returning to the ring to face his former sparring partner Larry Holmes for the vacant World Boxing Commission title, reportedly taking the fight . Before the fight, he was ordered to undergo examination at the Mayo Clinic because there was a concern as to whether he was fit to return to the ring—he had begun to .

The fight was so one-sided that Holmes went on to win after Ali’s long-time trainer finally stepped in to stop the fight. Stallone attended the fight in Las Vegas and compared it to  Ali fought one more time before ultimately retiring.

As time went on, Ali struggled with the impact that Parkinson’s had on his health—a condition related to taking an . He continued to make public appearances, including his inspiring lighting of the Olympic torch in the 1996 Atlanta Games. He continues to be a , considered the greatest heavyweight boxer of all time.

Jared Bahir Browsh is an assistant teaching professor of critical sports studies in the CU Boulder Department of Ethnic Studies.

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Cadavers used in anatomy classes were buried in unmarked lots in Columbia Cemetery

The University of Colorado Department of Medicine and Surgery opened in Boulder in 1883 with two students. By 1890, the medical school included more than a dozen students, two of them women. In order to graduate, each student was required to dissect an entire human body.

Records of these cadavers reveal a little-known cross section of life and death in Boulder County. The body parts were interred in unmarked lots, where they remain today, in Boulder's Columbia Cemetery.

Prior to the school's opening, Dr. Lumen M. Giffin moved to Boulder from New York to become professor of anatomy and physiology. In the early days, tuition for the three-year program was a one-time fee of $5 for in-state students and $10 for those from out of state. The courses included lectures, chemical laboratories and dissections.  

CU Boulder alum Silvia Pettem is an acclaimed local historian and author of Separate Lives: Uncovering the Hidden Family of Victorian Professor Mary Rippon.

One of the bodies donated to Giffin's class was that of miner Frederick Nelson. He had sought refuge from a forest fire and suffocated in the shaft of the Bald Mountain Mine near the town of Sunset. His relatives were unknown, and no one claimed his remains.

Many of the deceased met similarly unusual or violent deaths. According to coroners' records, in 1909 Herman Schmidt's skull was crushed by a falling rock while he worked as a laborer on the construction of Barker Dam, below Nederland. Schmidt was a recent immigrant with no known family or friends. 

No one knew anything about Michael Clifford at the time of his death except his name. He was murdered in a drunken brawl in the town of Marshall. The university also welcomed his body.

Few, if any, of the cadavers used in the classroom dissections were female until 1914, when Cyrus Deardoff donated the body of his 70-year-old wife, Ellen, who had been declared insane and starved herself.  

Cyrus had, at one time, been a prominent gold miner in Ward. However, he died destitute a few months after Ellen's death. He saved the expense of a funeral and the stigma of being consigned to a pauper’s grave by agreeing in advance to give the university his body, as well.

The year was a busy one for the medical students. By then, CU had purchased its second cemetery lot, and bought a third one a couple years later. 

Additional bodies came from people who died by suicide or from influenza or other infectious diseases. Some, like Thomas McCormick, died from an overdose of morphine in the county jail.

Then there was William Ryan, a farmer, who had suffered from chronic alcoholism and was found dead in bed. He had no family, but he did have a watch and chain and a horse and buggy. CU got those items, too.

In 1924, citing a lack of appropriate medical facilities, CU's medical school moved to Denver. In 2008, the school transformed itself again with a move to the Anschutz Medical Campus in Aurora.

A year before the school left Boulder, Giffin died of a stroke at age 72. At the time, he was the oldest physician in Boulder. He, too, was buried in Columbia Cemetery—intact and in his own grave with family members. But while Giffin is resting is peace, the other bodies in Columbia Cemetery are resting in pieces.

Top image: Luman M. Giffin (center) and his class in the CU Medical School during the late 1890s. (Photo: courtesy Carnegie Library for Local History, Boulder)

Silvia Pettem is a CU Boulder alum (1969) and is the author of Separate Lives: Uncovering the Hidden Family of Victorian Professor Mary Rippon. This column originally appeared in the Daily Camera. She can be reached at .

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