1. Montana Becomes a State: On February 6, 1889, President Grover Cleveland signed a proclamation admitting Montana as the 41st state in the United States.

2. Mining Tragedy: On February 6, 1917, an underground explosion killed 168 miners at the Speculator Mine in Butte, Montana. It was one of the worst mining disasters in U.S. history.

3. Buffalo Soldiers Arrive: On February 6, 1888, a group of Buffalo Soldiers, African American soldiers who served in the U.S. Army after the Civil War, arrived in Montana to help protect settlers from Native American attacks.

4. Record Cold: On February 6, 1933, the town of Rogers Pass recorded a temperature of -70°F, which is still the coldest temperature ever recorded in the state of Montana.

5. Famous Montana Author Born: On February 6, 1943, Montana author, Ivan Doig, was born in White Sulphur Springs, Montana. Doig wrote several acclaimed novels, including "This House of Sky" and "English Creek."