1) In 1869, Wyoming's constitutional convention met in Cheyenne on February 19th to draft the state's first constitution. Wyoming became a state in 1890 and was the first state to grant women the right to vote.

2) The Battle of Powder River occurred on February 19, 1876, during the Black Hills War between the United States Army and the Lakota, Northern Cheyenne, and Arapaho tribes. It was one of the largest conflicts of the war and signaled a significant shift in the relationship between the federal government and Native American nations in the region.

3) On February 19, 1934, two men robbed a bank in Cody, Wyoming, making off with over $16,000 worth of cash and securities. The robbery became one of the biggest law enforcement investigations in the state's history, with several arrests and convictions ultimately resulting from the crime.

4) Wyoming's first national forest, the Shoshone National Forest, was established on February 19, 1891. The forest covers over 2.4 million acres in northwestern Wyoming and is one of the largest forests in the United States.

5) In 1913, Wyoming became the first state to adopt a workers' compensation program, which provided benefits to employees who were injured or killed on the job. This landmark legislation was significant in driving a nationwide movement for greater worker protections and helped establish Wyoming as a leader in labor reform.