1. On April 13, 1862, a group of prospectors found gold in Bannack, Montana, leading to the Montana gold rush. Bannack became the first capital of Montana Territory and many people flocked there in hopes of striking it rich.

2. In 1943, on April 13, the first "Ranger" battalion trained at Fort William Henry Harrison near Helena, Montana. The Rangers were trained in special operations and were called upon to carry out difficult missions during World War II.

3. On April 13, 1979, a major blizzard hit Montana, causing widespread damage and leaving many people stranded without electricity or heat. The blizzard lasted for several days and caused $25 million in damage.

4. In 1993, on April 13, the Montana State Legislature passed a bill allowing women to serve on juries for the first time. Before then, women were not considered competent to serve on juries in Montana.

5. On April 13, 2009, Montana Governor Brian Schweitzer signed a bill legalizing medical marijuana in the state. Montana was one of the first states in the country to legalize medical marijuana, and the law remained in effect until it was repealed in 2011.