Cody, Wyoming, was founded in 1896 by investors including Buffalo Bill Cody who had high hopes for prosperity thanks to local irrigation, great scenery, and nearby Yellowstone National Park. Prosperity finally arrived early in the 20th century with the Burlington Railroad and, eight miles away, the federally financed Buffalo Bill Dam. Cody remains one of Wyoming’s premier tourist towns.

On May 16, 1986, David and Doris Young took 154 people hostage at the Cokeville Elementary School in tiny Cokeville, Wyo. and detonated a bomb inside. The Youngs both died that day. Everyone else survived, and many who did recalled the tragedy with memories of the presence of angels.

Thomas Moonlight was elected State Senator for Leavenworth County in 1872 and then appointed Governor of Wyoming Territory by President Cleveland on January 5, 1887. Governor Moonlight took the oath of office January 24, 1887 serving until April 9, 1889

The mystery surrounding the Pedro Mountain Mummy, discovered in the 1930s about 60 miles south of Casper, Wyo., by two gold prospectors, continues to intrigue people. While some sensational media accounts indicated the mummy might have been one of the little people of American Indian folklore, scientists who studied the artifact in detail have concluded that the mummy was an infant who died because of a congenital defect.

Owen Wister’s enormously popular novel, The Virginian, published in 1902, was set in Wyoming and established the cowboy in American literature as the noble, competent, humorous, laconic hero still familiar today. Wister, a Philadelphian, first came to Wyoming in 1885, looking for stories and better health. He visited the state 14 more times between then and 1900, writing and publishing western stories and books of stories before The Virginian made him famous and rich, and set a pattern for thousands of western novels and films to come.

In 1830, a party of fur traders led by William Sublette took wagons to the trade’s annual rendezvous at the headwaters of Wind River that year, east of the Continental Divide. Two years later, Capt. Benjamin Bonneville took the first caravan of wagons across the Divide at South Pass.

Lucy Morrison Moore, “The Sheep Queen of Wyoming,” was a leading sheep producer during the heyday of public-land sheep ranching from the 1880s to 1920s. Smart, tough and slightly eccentric, she and her family survived brutal, isolated conditions and attacks from cattle ranchers.

In 1869, explorer John Wesley Powell named the red-walled canyon on the Green River in Wyoming Territory “Flaming Gorge.” The Flaming Gorge Dam, completed in 1964, helps regulate water flows and its power plant generates electricity. The dam is located in Utah, but the reservoir stretches north into Wyoming near the town of Green River. In 1968, the U.S. Congress created the Flaming Gorge National Recreation Area, which is located in the states of Utah and Wyoming and draws visitors from around the world.

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.

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.