1. On May 6, 1882, the first train arrived in Rawlins, Wyoming, marking the completion of the Union Pacific Railroad across the state. The event was celebrated with a parade and a grand ball, and the railroad brought new economic opportunities to the area.
2. In 1933, the famous outlaw Butch Cassidy's former ranch near Dubois, Wyoming was added to the National Register of Historic Places. Cassidy, whose real name was Robert Leroy Parker, had lived on the ranch and used it as a hideout while on the run from the law.
3. On May 6, 1971, the University of Wyoming's American Heritage Center was dedicated. The center is a research library and archive that houses over 90,000 collections of historic documents, photographs, and artifacts from Wyoming and the American West.
4. In 2007, a devastating tornado ripped through western Wyoming, destroying homes and businesses in the town of Greensburg. The tornado was rated EF3 on the Enhanced Fujita scale, and caused millions of dollars in damages. Fortunately, there were no fatalities.
5. May 6, 2014, marked the opening of the National Museum of Wildlife Art's newest wing, the Walter Scott Jr. Pavilion, in Jackson Hole, Wyoming. The pavilion added 16,000 square feet of exhibition space to the museum, which houses over 5,000 artworks celebrating the natural world.