1. In 1902, the United States Bureau of Reclamation was established. Its primary focus was to oversee the irrigation projects in arid regions of the country, including Idaho. Idaho has several Reclamation projects including the Minidoka Project.

2. In 1922, Idaho was hit by a massive snowstorm. The storm was so severe that it stopped all the transportation and communication facilities, and the state was declared to be in a state of emergency.

3. In 1930, a magnitude 6.5 earthquake struck the Idaho-Montana border. The earthquake was felt in many parts of Idaho, Montana, and Wyoming, causing significant damage to buildings and bridges.

4. On January 11, 1951, the Idaho Potato Commission was established. Since then, the commission has been promoting Idaho potatoes across the United States and around the world, and it has helped make Idaho potatoes some of the most popular in the world.

5. In 1967, Borah Peak, the highest point in Idaho, was hit by a 6.9 magnitude earthquake. The earthquake was the second-largest ever recorded in the continental United States and caused significant damage and fatalities.