1. Montana was admitted to the Union on June 14, 1889. It was the 41st state to join the United States.
2. On June 14, 1924, President Calvin Coolidge signed the Indian Citizenship Act, which granted U.S. citizenship to all Native Americans born in the United States.
3. The first aerial firefighting mission in the United States took place in Montana on June 14, 1939. A fire-spotting plane dropped water on a small fire in the Lolo National Forest.
4. The Montana State Prison Riot occurred on June 14, 1959. Inmates took control of the prison and three guards were killed. The riot was eventually put down by state troopers and National Guardsmen.
5. On June 14, 2010, President Barack Obama signed the Claims Resolution Act of 2010. The act included a $1.4 billion settlement for the Montana Crow Tribe's water rights.