1. Idaho Becomes a State: On July 30, 1890, Idaho was admitted as the 43rd state in the United States of America. Idaho was the fourth state in the Rocky Mountain region to become a state after Wyoming, Utah, and Montana.

2. Fire Destroys Downtown Boise: In 1962, a massive 5-alarm fire broke out in downtown Boise, burning more than a dozen buildings to the ground. The fire destroyed many businesses and landmarks, including the historic Idanha Hotel.

3. Basques Celebrate "Jaialdi": Every five years, the Basque community of Idaho celebrates "Jaialdi", a festival that celebrates their heritage and culture. The first Jaialdi was held in 1987, and it has since grown to become one of the largest Basque festivals in the world. The next Jaialdi is scheduled for July 2022.

4. First Transcontinental Airmail Route: In 1924, the first transcontinental airmail flight landed in Boise, Idaho. The flight was flown by a consortium of airlines led by Varney Air Lines, which later became United Airlines. The flight took 33 hours and made stops in several cities, including Cheyenne, Salt Lake City, and Elko.

5. Governor Cutler Signs Proclamation Against "Vigilante Terrorism": In 1977, Governor John V. Evans signed a proclamation condemning "vigilante terrorism" in Idaho, following several high-profile incidents of violence by white supremacist groups in the state. The proclamation called on all Idahoans to work together to fight racism and bigotry.