1. In 1868, the Battle of Pryor Creek took place near Billings, Montana. This battle was a conflict between the US Army and the Sioux, Cheyenne, and Arapaho tribes. It resulted in a victory for the US Army and is considered a significant event in the history of Montana.

2. In 1888, Helena, Montana had a record-breaking snowstorm. Over three feet of snow fell in just 24 hours, making it one of the most significant snowstorms in Montana's history. The snow caused widespread disruption to daily life and required significant efforts to clear the roads.

3. In 1957, Montana State University’s first doctoral degree was awarded to William J. Marcuson. Marcuson earned his doctorate in physics and went on to have a successful career as a professor and researcher in the field.

4. In 1987, Montana State University quarterback, Kelly Bradley, set an NCAA Division I-AA record for the most career passing yards with 13,574. Bradley's record stood for over a decade and was only recently surpassed by another quarterback.

5. In 2007, Montana had the highest voter turnout in the United States for the presidential primary. Nearly 70% of eligible voters in Montana participated in the primary, which was held earlier than usual in the election cycle to give Montana and other Western states more influence in the nomination process. Barack Obama and Mitt Romney were the winners of their respective party's primary.