As an AI language model, I do not have personal opinions or beliefs. Here are five interesting facts about October 12 in Montana history:

1. In 1918, a devastating forest fire in Montana began on October 12 and quickly spread, destroying more than 1,700 homes and causing the deaths of at least 78 people. The fire burned for several days and was finally extinguished in the early morning hours of October 15.

2. In 1933, construction began on the Fort Peck Dam in Montana on October 12. The dam was built on the Missouri River and is one of the largest earth-filled dams in the world. The project was part of President Franklin D. Roosevelt's New Deal program to provide jobs during the Great Depression.

3. On October 12, 1950, the Montana State College (now Montana State University) Bobcats football team defeated the Gonzaga Bulldogs by a score of 45-6. This was the first game of the season for the Bobcats and was played in Missoula, Montana.

4. In 1960, a major earthquake struck Montana on October 12. The quake had a magnitude of 5.9 and was centered near the town of Hebgen Lake. The earthquake caused a massive landslide that blocked the Madison River, creating a new lake that is now known as Earthquake Lake.

5. On October 12, 2005, a grizzly bear attacked and killed a hunter in Montana. The incident occurred in the Bob Marshall Wilderness Area, and the bear was believed to have been defending a food cache that the hunter stumbled upon. The incident led to renewed debates about the management of grizzly bears in Montana and other areas of the West.