1. On October 12, 1892, famous Old West outlaw Butch Cassidy held up his first bank in Telluride, Colorado. He went on to form the Wild Bunch gang and became notorious for robbing banks and trains throughout the West.

2. On October 12, 1898, the first Wyoming State Fair was held in Douglas. The event attracted thousands of visitors and showcased livestock, horse racing, and other agricultural exhibits.

3. In 1910, on October 12, the University of Wyoming acquired the skull of a Tyrannosaurus Rex from the Carnegie Museum of Natural History. The specimen, known as "Stan," is one of the most complete T-Rex skeletons ever found and is on display at the University of Wyoming Geological Museum.

4. On October 12, 1918, the deadliest wildfire in Wyoming's history broke out near the town of Dubois. The fire burned over 1 million acres before it was finally extinguished, destroying homes, ranches, and wildlife habitats.

5. On October 12, 1964, Wyoming native Craig Thomas became the youngest person ever elected to the Wyoming State Legislature at age 23. Thomas went on to become a U.S. Senator for Wyoming from 1995 until his death in 2007, and was known for his advocacy for environmental conservation and public land management.