1. In 1913, President Woodrow Wilson signed the legislation that created the first national irrigation project in the United States. The project, which was based in Arizona, involved the construction of a series of dams and canals to divert water from the Salt River to irrigate agricultural land in the Phoenix area.

2. In 1942, President Franklin D. Roosevelt signed Executive Order 9066, which authorized the forced relocation and internment of Japanese Americans living on the West Coast. Many of these individuals were sent to internment camps in Arizona, including the Gila River War Relocation Center and the Poston War Relocation Center.

3. On February 19, 1951, the Arizona State Capitol was struck by lightning, causing a fire that caused extensive damage to the building. Despite the damage, the building was repaired and remains in use to this day as the home of Arizona's state government.

4. In 2009, Arizona became the first state in the nation to pass a law requiring all high school students to pass a civics exam before they could graduate. The law, which was later followed by similar measures in other states, aimed to ensure that young people have a basic understanding of American government and history.

5. On February 19, 2012, the Arizona Wildcats men's basketball team defeated the Washington State Cougars 83-63 to set a new record for the longest home winning streak in NCAA Division I history. The team went on to win 81 consecutive home games over a four-year period.