1) In 1934, the infamous outlaw, John Dillinger was sighted in Billings, Montana. Dillinger and his gang were on a crime spree that had been going on across several states, and he was eventually caught and killed by law enforcement in July 1934.

2) On September 20, 1940, 15 people lost their lives in a train derailment near the town of Troy, Montana. The accident was caused by heavy rain and flooding in the area, which caused the tracks to become washed out.

3) In 1942, the United States government opened the Fort William Henry Harrison military base near Helena, Montana. The base served as a training ground for soldiers during World War II and was also used as a prisoner of war camp.

4) On September 20, 1967, the Montana State University football team played their first game at their new stadium, which was named after their former coach, Warren Miller. The stadium has since undergone several renovations and remains a popular venue for sports and events in the area.

5) In 1994, a wildfire known as the Mann Gulch Fire erupted near Helena, Montana. The fire started on August 5th and quickly spread, ultimately claiming the lives of 13 firefighters who were attempting to put out the blaze. The tragedy resulted in changes to firefighting techniques and safety regulations.