1. In 1869, construction of the Union Pacific Railroad in Wyoming was completed. This marked the first time the East Coast and West Coast of the United States were connected by railroad.

2. On June 8, 1923, the famous outlaw Harry Tracy was killed near Sundance, Wyoming after a four-month manhunt. Tracy, who was known for shooting multiple law enforcement officers, had been on the run since escaping from jail in Oregon.

3. In 1959, the first Cheyenne Frontier Days rodeo was held on June 8. This annual event, which takes place in July, is the largest outdoor rodeo in the world and draws thousands of visitors to Wyoming each year.

4. On June 8, 1982, the Wyoming Supreme Court ruled in favor of Jackie Riles, a woman who had been denied a liquor license because she was pregnant. The court held that the state's liquor laws did not discriminate against pregnant women and that Riles was entitled to a license.

5. In 2010, a tornado struck the town of Gillette, Wyoming, damaging several buildings and causing extensive power outages. The tornado, which was classified as an EF3, was one of the most powerful to ever hit the state. Fortunately, there were no fatalities.