1. On April 4, 1884, Montana's first train robbery occurred in Gallatin Canyon. Five masked men stopped the train and made off with $40,000 worth of gold and currency. The robbers were never caught.

2. In 1910, on April 4, the largest earthquake in Montana's history occurred near Dillon. The quake measured 6.6 on the Richter scale and caused significant damage to buildings in the area.

3. On April 4, 1944, the United States Army established Camp Rimini in Montana. The camp was used to train soldiers for mountain warfare during World War II.

4. In 1979, on April 4, the Montana Legislature approved the state's first non-discrimination law, which prohibited discrimination based on race, gender, age, religion, or national origin.

5. On April 4, 2013, a blizzard hit much of Montana, causing widespread power outages and closing highways. Some areas received over two feet of snow, and many schools and businesses were forced to shut down for several days.