Here are 5 interesting facts about October 3 in Wyoming history:

1. On October 3, 1868, the Fort Laramie Treaty was signed, which established a peace between the United States and the Lakota, Cheyenne, Arapaho, and other Plains Indian tribes. The treaty also allowed the U.S. government to build roads, forts, and other infrastructure on Indigenous lands, leading to conflicts that would last for decades.

2. In 1903, the Cody Stampede, one of the oldest and largest rodeos in the U.S., was first held in Cody, Wyoming. The rodeo was founded by Buffalo Bill Cody, a famous showman and frontier figure who helped to popularize Western culture.

3. On October 3, 1949, the University of Wyoming unveiled a new nuclear reactor on its campus in Laramie. The reactor was one of the first in the U.S. to be used for research and educational purposes, and it helped to establish the university's reputation as a center for nuclear science.

4. In 1986, a coal mine explosion in Rock Springs, Wyoming killed 11 miners and injured 6 others. The tragedy sparked a national conversation about workplace safety and led to new regulations and standards for the mining industry.

5. On October 3, 2009, the University of Wyoming Cowboys football team defeated the Ball State Cardinals 45-0 in Laramie. The win was the Cowboys' second of the season and marked the team's first shutout victory in four years.