1. Wyoming was the first state in the United States to grant women the right to vote, and May 17, 2019 marked the 150th anniversary of this historic event. In 1869, Wyoming's territorial legislature passed a bill granting women the right to vote and hold public office.

2. May 17, 1878, saw the establishment of Yellowstone National Park, the first national park in the world. Located primarily in Wyoming, the park covers over 2.2 million acres and is home to an incredible variety of wildlife and geothermal features.

3. On May 17, 1902, the town of Casper was incorporated. Casper is the second-largest city in Wyoming and is known for its vast outdoor recreation opportunities, including hiking, camping, and fishing.

4. May 17, 1934, saw the opening of the F.E. Warren Air Force Base near Cheyenne, Wyoming. Named after Civil War general Francis E. Warren, the base is home to the 90th Missile Wing and is responsible for maintaining intercontinental ballistic missiles.

5. In 1992, the University of Wyoming conferred an honorary degree upon musician and activist John Denver on May 17. Denver, who lived in Aspen, Colorado, was a longtime advocate for environmental conservation and often sang about his love for the mountains and the outdoors.