1. On June 11, 1877, Nez Perce Chief Joseph's band of warriors fought their last battle against the U.S. Army in the Bear Paw Mountains of Montana, just north of the Idaho border. The Nez Perce had been trying to make their way to Canada, but were forced into a battle due to exhaustion and starvation. This battle marked the end of the Nez Perce War.

2. June 11, 1895 marked the birth of Idaho's state bird, the mountain bluebird. It was officially designated as the state bird by an act of the state legislature in 1931.

3. On June 11, 1917, the state of Idaho became the 24th state to ratify the 19th amendment to the U.S. Constitution, which granted women the right to vote.

4. June 11, 1935 is known as "Black Sunday" in Idaho history. A massive dust storm swept across the state, causing widespread damage to crops and property, and leading to respiratory problems for many Idaho residents.

5. On June 11, 1980, a magnitude 6.9 earthquake struck the town of Borah Peak in central Idaho. The quake was the largest ever recorded in the state and caused significant damage to buildings and infrastructure in the area. The earthquake was also felt throughout the western United States and Canada.