1. In 1880, the first passenger train arrived in Lewiston, Idaho, marking the beginning of a new era in transportation for the state.

2. On March 23, 1917, the Idaho State Capitol in Boise was dedicated after three years of construction. The building's dome is made of copper and is one of the most recognizable features of the Boise skyline.

3. In 1931, the town of Challis was nearly destroyed by a massive forest fire that burned over 500,000 acres of land. It was one of the largest fires in Idaho history.

4. On March 23, 1942, the first Japanese-Americans arrived at the Minidoka Internment Camp in Idaho. Over 13,000 Japanese-Americans were forcibly relocated to the camp during World War II.

5. In 1996, Idaho became the first state in the nation to ban same-sex marriage with the passage of the Defense of Marriage Act. The law was eventually overturned by a federal court in 2014.