1. The infamous outlaw, Butch Cassidy, was born on February 21, 1866, in Beaver, Utah. However, many historians believe that his birthplace may have actually been in Wyoming, as his family frequently moved between the two states during his childhood.

2. In 1905, the 4,000-acre Heart Mountain Ranch near Cody, Wyoming was established as a research station for the U.S. Department of Agriculture. The ranch was pioneering in using scientific methods to improve agricultural production and sustainability.

3. On February 21, 1915, the town of Jackson, Wyoming suffered a devastating fire that destroyed most of its buildings, including the town hall, several stores, and the post office. The town quickly rebuilt, and many of the new buildings were constructed using fire-resistant materials.

4. In 1947, a massive blizzard hit southeastern Wyoming, bringing over 25 inches of snow in just 24 hours. The storm caused widespread power outages and transportation disruptions, but the region's residents persevered and worked together to clear roads and restore services.

5. On February 21, 1985, the National Elk Refuge near Jackson Hole, Wyoming celebrated its 75th anniversary. The refuge was established in 1910 to protect and preserve the local elk population, which had been hunted to near-extinction. Today, the refuge is home to over 8,000 elk and dozens of other species of wildlife.