1. In 1918, a massive forest fire known as the "Hanna Fire" began in Carbon County on June 19th. The fire burned for over two weeks, destroying homes, mines, and timberland before it was finally brought under control.

2. On June 19, 1867, construction officially began on the Union Pacific Railroad in Cheyenne. The railroad would play a key role in the development and growth of the state of Wyoming.

3. In 1965, the Wyoming State Flag was officially adopted on June 19. The flag features a bison on a blue field, with the state seal in the center.

4. On June 19th, 1895, the famous Wyoming prison escape occurred in Laramie. Butch Cassidy and several other inmates successfully escaped from the Wyoming State Penitentiary, and went on to become some of the most infamous outlaws of the Old West.

5. On June 19, 1925, a massive tornado struck the town of Arvada, Wyoming. The tornado, which had winds estimated at over 200 miles per hour, destroyed many homes and businesses, and killed two people.