1. In 1868, the Treaty of Fort Laramie was signed, which guaranteed territories and hunting lands to Native American tribes in Wyoming, including the Cheyenne, Sioux, Arapaho, Crow, and others. However, the treaty was eventually broken, leading to the Battle of the Little Bighorn and ultimately to the displacement and mistreatment of many indigenous peoples in Wyoming and beyond.

2. In 1903, the first Cheyenne Frontier Days began, which is now the largest outdoor rodeo and western celebration in the world. The event was started as a way to revitalize the struggling economy of Cheyenne and has since grown to include parades, concerts, carnival rides, and various other festivities, drawing visitors from all over the country.

3. In 1928, a massive tornado struck the town of Wright, Wyoming, killing two people and injuring dozens more. The tornado was estimated to have been an F4 on the Fujita scale and caused extensive damage to homes, businesses, and other structures in the area.

4. In 1959, President Dwight D. Eisenhower signed a bill granting statehood to Hawaii, which had previously been a territory. Many Wyoming residents opposed this move, believing that Hawaii's inclusion as a state would dilute Wyoming's political power in the U.S. Congress.

5. In 1985, a small airplane carrying the governor of Wyoming, Ed Herschler, crashed in the Wind River Mountains, killing all on board. Herschler, who had served as governor since 1975, was well-known for his efforts to modernize and diversify Wyoming's economy, particularly through the promotion of tourism and outdoor recreation.