1. Idaho became a state on June 5, 1890: June 5 is a significant day in Idaho’s history as it marks the day when Idaho became the 43rd state of the United States. This day is celebrated every year as Statehood Day.

2. The Treaty of Fort Bridger was signed on June 5, 1868: This treaty was signed between the US government and the Eastern Shoshone and Northern Arapaho tribes. The treaty ensured the tribes’ rights to live on a reservation in Wyoming and receive annual payments and provisions from the government.

3. The first successful jump of an Evel Knievel stunt took place on June 5, 1966: At the Twin Falls County Fairgrounds, Evel Knievel successfully jumped over a row of cars on his motorcycle, earning him national attention and beginning his career as a daredevil.

4. The Idaho National Engineering and Environmental Laboratory was established on June 5, 1949: The laboratory, now known as the Idaho National Laboratory, is a leading research institution for nuclear energy and national security.

5. The first ever controlled nuclear reactor was tested on June 5, 1951: This test, performed at the National Reactor Testing Station in Idaho, marked the first time nuclear power had been successfully controlled and demonstrated its potential for use as a source of energy.