1) In 1945, two B-17 bombers collided over the Gallatin Valley, killing all 28 crew members on board. The wreckage of one of the planes was found 54 years later in 1999, and a memorial now stands at the crash site.

2)On October 30, 1864, the Battle of Westport took place in Missouri, which was a decisive Union victory in the American Civil War. Montana was not yet a state at that time but many of its residents likely served in the war.

3) In 1952, the first television station in Montana, KXLF-TV, began broadcasting in Butte. This was a significant milestone in the state's media history as it opened up new ways to share news and entertainment.

4) On this day in 1975, the first nuclear power plant in Montana, the Montana Power Company's Big Sky facility, began commercial operation. However, due to a lack of demand and problems with the reactor, the plant was shut down after just 10 years of operation.

5) In more recent years, October 30, 2012 saw a record snowfall of 16.2 inches in Great Falls, Montana. This was the heaviest October snowfall ever recorded in the city and caused widespread disruption to transport and power supplies.