1. In 1890, Idaho became the 43rd state in the United States. After years of territorial status, Idaho was finally admitted to the Union on July 16, 1890.

2. In 1931, the Idaho State Capitol Building was completed. The building, located in Boise, serves as the seat of Idaho's government and houses the offices of the Governor, Lieutenant Governor, and other state officials.

3. In 1945, two B-17 bombers collided over the Clearwater National Forest, killing all sixteen crew members. The crash site, known as the Kamiah Airplane Crash Site, is now a popular hiking destination.

4. In 1999, Idaho experienced its largest wildfire in history with the North Fork Fire. The fire burned over 17,000 acres in the Payette National Forest and took over a month to fully extinguish.

5. In 2018, Idaho was hit with a series of earthquakes that began on July 16. The largest of the earthquakes measured 4.3 on the Richter scale and was felt in several counties across the state. While there were no reports of major damage or injuries, the earthquakes served as a reminder of Idaho's location on the Pacific Ring of Fire, an area prone to seismic activity.