1. In 1885, the town of Cherry Creek was established in Idaho. This mining town became famous for producing silver, lead, copper, and other minerals until the 1920s when production declined.

2. In 1905, the Idaho State Penitentiary opened its doors in Boise. It was built to be one of the most modern prisons in the country, but it became known for the high number of executions that took place there.

3. In 1937, the Bonneville Dam on the Columbia River was completed. This dam created a large reservoir that helped to control flooding, generate hydroelectric power, and improve navigation on the river.

4. In 1963, the Pioneer Fire started in the Boise National Forest. It burned over 16,000 acres and destroyed many homes and buildings in the towns of Lowman and Crouch. The fire was finally contained after 84 days of burning.

5. In 1972, the Sawtooth National Recreation Area was established in central Idaho. This area contains over 217,000 acres of wilderness and is home to many species of wildlife, including bears, mountain lions, elk, and moose. It is a popular destination for hiking, camping, fishing, and other outdoor activities.