1. Idaho became a state: November 18, 1889, is a historic day for Idaho as it is the day the state was officially admitted into the Union after a long struggle for statehood.

2. World’s first nuclear power plant: On November 18, 1951, the Experimental Breeder Reactor I (EBR-I) in Idaho became the world’s first nuclear power plant to successfully generate usable electricity.

3. President Theodore Roosevelt visit: On November 18, 1903, President Theodore Roosevelt visited Idaho and spent time in Boise, Nampa, and Caldwell. He also visited the site of the proposed Minidoka Irrigation Project.

4. First ski resort in Idaho: The first ski resort in Idaho, Sun Valley, opened on November 18, 1936. It was developed by the Union Pacific Railroad to promote winter tourism.

5. Plane crash tragedy: On November 18, 1951, a tragic plane crash occurred on Silver Mountain in Idaho. The Northwest Orient Airlines Flight 305 was en route from Portland to Seattle when it crashed into a mountain, killing all 18 passengers and crew on board.