1) On April 12, 1909, the Wyoming State Capitol building in Cheyenne was destroyed by fire. The Capitol had only been completed in 1890, and its loss was a significant blow to the state. The building was eventually rebuilt and completed in 1917.

2) In 1934, on April 12, the infamous outlaw gang known as the" Hole in the Wall Gang" was reportedly still active in Wyoming. The gang, known for its members such as Butch Cassidy and the Sundance Kid, used the remote and rugged terrain of Wyoming to their advantage.

3) On April 12, 1951, the city of Laramie, Wyoming was hit by a massive snowstorm that dumped over 30 inches of snow in just 24 hours. At the time, it was considered one of the worst snowstorms in the state's history.

4) April 12, 1995, marked the beginning of a major landmark event in Wyoming's history- the trial of Timothy McVeigh, the man responsible for the Oklahoma City bombing, which killed 168 people. The trial took place in Denver, Colorado, but the bombing had significant ties to Wyoming, where McVeigh had spent time.

5) On April 12, 2012, the first ever female gubernatorial debate was held in Wyoming. The debate featured both Democratic and Republican candidates, and was a significant moment for women's representation in Wyoming's politics.