1. Idaho officially became a state: On October 7, 1890, President Benjamin Harrison signed a proclamation admitting Idaho as the 43rd state of the United States.

2. First wool warehouse is built: In 1869, the first wool warehouse in Idaho was built in Boise. The warehouse was used for storing wool from the surrounding sheep ranches.

3. Idaho observes "Fire Prevention Week": In 1925, the first "Fire Prevention Week" was observed in Idaho. This week aims to raise awareness on fire safety and prevention measures.

4. Borah Peak earthquake: On October 7, 1983, a magnitude 6.9 earthquake struck near Borah Peak in Idaho. This is the largest earthquake on record in Idaho and caused extensive damage and several fatalities.

5. Idaho native becomes NASA astronaut: In 2011, Pocatello native Anne McClain was selected by NASA as an astronaut candidate. She completed her training in 2015 and has since embarked on several space missions, including a six-month stint on the International Space Station in 2018.