1. Wyoming became a state: On June 23, 1890, Wyoming became the 44th state in the United States of America. It was the first state to grant women suffrage, giving them the right to vote in 1869, a full 21 years before the 19th Amendment was ratified.

2. The first rodeo was held: In 1897, the first official rodeo was held in Cheyenne, Wyoming. It was called the “Frontier Days Celebration” and featured various western-style competitions, such as bronc riding and calf roping.

3. Outlaw Butch Cassidy was born: On June 23, 1866, Robert LeRoy Parker, better known as Butch Cassidy, was born in Beaver, Utah. Along with his infamous gang, the Wild Bunch, he robbed banks and trains throughout the American West in the late 1800s and early 1900s.

4. Record-breaking lightning storm: In 2015, a lightning storm in Wyoming broke the world record for the longest-lasting lightning bolt. The bolt lasted for over 16 seconds, covering a distance of more than 200 miles.

5. Yellowstone National Park established: On June 23, 1872, Yellowstone National Park was established, making it the first national park in the world. Located mostly in Wyoming, it spans over 2.2 million acres and is home to iconic geothermal features such as Old Faithful and the Grand Prismatic Spring.