After World War II, the University of Wyoming was bursting with returning veterans just as the nation, nervous about Communist expansion worldwide, was sliding into the Cold War. UW trustees called for the investigation of textbooks in use on campus to determine if they were “subversive or un-American.” The faculty overwhelmingly resisted the move, and both sides reached a compromise guaranteeing academic freedom in the future.

The history of Johnson County, Wyo., features a number of violent conflicts that influenced the heritage of the West. The Fetterman and Wagon Box fights were important conflicts in the Indian wars of the 1860s, while the infamous 1892 Johnson County War erupted because of tensions among cattle barons, homesteaders and rustlers. Johnson County’s economy today continues to thrive on tourism, ranching and oil and gas.

The basin of the North Platte River takes up the southeastern quarter of Wyoming, plus a finger of land along the tributary Sweetwater River in the center of the state. The courses of the North Platte and Sweetwater determined early fur-trade and emigrant routes. Since that time, the basin’s water and other resources have continued to draw industry, stock raising, dams and irrigation—and people.

Lester Hunt was elected to the House of the State Legislature in 1932, elected Secretary of State in 1934 and 1938, and elected Governor in 1942 where he served until 1949.

From their modest upbringings, Mardy and Olaus Murie became diligent, adventurous and charismatic leaders of the American conservation movement. With their siblings, Louise and Adolph Murie, they shaped conservation biology and ecology and are credited with some of our country’s most historic efforts to protect wild lands. The two couples split their time between remote Alaska and a ranch at the feet of the Tetons, where the Murie Center carries on their efforts today.

University of Wyoming student Matthew Shepard, who was openly gay, was brutally beaten in October 1998 by Aaron McKinney and Russell Henderson. Shepard died several days later. The incident received international media coverage and continues to spark controversy about hate crimes. Shepard’s parents, Judy and Dennis, established a foundation in Matthew’s name, which continues its pro-LGBT educational work today.

Lillian Heath, Wyoming’s first woman physician, practiced medicine in and around Rawlins, Wyo., beginning in 1893. As a teenager, she trained with Union Pacific Railroad surgeon Dr. Thomas Maghee, and assisted Maghee and Dr. John Osborne in their post-mortem investigations into the brain of outlaw Big Nose George Parrot. Later she won a medical degree from the College of Physicians and Surgeons in Keokuk, Iowa, where she specialized in obstetrics. She retired after 15 years of practice, but remained keenly interested in medicine until her death in 1962.

Accidents and disasters have plagued Wyoming coal mines since territorial times. In 1886, legislators created the office of the state mine inspector to help improve safety. Still, explosions and cave-ins killed hundreds of miners in the following decades. The worst accidents happened in Hanna in 1903 and near Kemmerer in 1923. Lawmakers continued to increase safety measures and eventually expanded the duties of the state mine inspector. Modern strip mining is far safer.

Created in 1911 and named for President Abraham Lincoln, Lincoln County is perhaps best known for its extraordinary geological history, showcased at Fossil Butte National Monument. The county seat, Kemmerer, Wyo., is the site of the first store opened by James Cash Penney, founder of J. C. Penney & Co., a business that still operates nationally today. Agriculture, mining and oil and gas industries continue to spur the county’s economy.

The Mineral Leasing Act of 1920 established the modern system by which oil and coal companies may lease federal land. This system has proven enormously beneficial to Wyoming’s state coffers since it was first enacted nearly 100 years ago. How this all came about is a story of early oil producers looking for a way around a presidential order and a highly contentious Supreme Court case, all with lucrative results for the state of Wyoming—and a stabilizing result for the industry.