1. On August 7, 1872, a large earthquake struck southeastern Idaho, causing damage to buildings and creating fissures in the ground. The earthquake had an estimated magnitude of 6.5 and was felt throughout the region.

2. In 1934, the city of Ketchum, Idaho was incorporated on August 7. Ketchum is located in central Idaho and is known for its proximity to Sun Valley ski resort.

3. August 7, 1890 marked the day that the first newspaper in Boise, Idaho, the Idaho Daily Statesman, was printed. The paper is still in circulation today as the Idaho Statesman.

4. On August 7, 1974, a forest fire broke out in the Payette National Forest in west-central Idaho. The fire burned over 200,000 acres and destroyed several small towns in the area. It remains one of the largest wildfires in Idaho history.

5. August 7 is also recognized as National Lighthouse Day, which celebrates the importance of lighthouses in guiding ships and protecting sailors. Although Idaho doesn't have any lighthouses, the state has a rich maritime history, particularly in the form of steamboats that plied the waters of the Snake and Clearwater Rivers in the late 1800s and early 1900s.