1. On October 26, 1864, the Battle of Cedar Creek occurred in what is now known as Montana's Beaverhead County. This battle was fought during the ongoing conflict between the United States Army and various Native American tribes in the area.

2. In 1903, the Montana State Capitol building was completed and dedicated in Helena on October 26th. The Capitol building has since become an iconic symbol of the state, and is listed on the National Register of Historic Places.

3. On October 26, 1937, the Montana State University Bobcats football team played their first-ever night game against the University of Montana Grizzlies. The Bobcats won the game 27-0 in front of a crowd of over 12,000 spectators.

4. In 2005, the Lewis and Clark National Historic Trail Interpretive Center opened in Great Falls on October 26th. The center provides visitors with an interactive and educational experience, allowing them to learn about the historic expedition of Lewis and Clark and their journey through Montana.

5. On October 26, 2011, the Montana State Legislature met in a special session to address budget shortfalls in the state. The session lasted for three days, during which lawmakers worked to find solutions to the financial challenges facing Montana.