1. On March 19, 1913, Arizona became the 48th state in the United States after being granted statehood by President Woodrow Wilson. This ended a long struggle by Arizonans to achieve statehood and put the state on the map as a significant political and cultural force in the Southwest.

2. On March 19, 1962, the Phoenix Suns were founded as a professional basketball team. The Suns have gone on to become one of the most successful teams in NBA history, with numerous conference championships and NBA Finals appearances.

3. On March 19, 2003, the U.S. launched an invasion of Iraq as part of the War on Terror, which would last for over a decade. This led to significant political and social changes within Arizona, and sparked significant debate and controversy about the role of the U.S. in global affairs.

4. On March 19, 1909, Arizona Governor George W.P. Hunt signed a bill to create the Arizona State Fair. The fair would become a major cultural institution in Arizona, featuring livestock shows, concerts, and other events.

5. On March 19, 1813, a group of Mexican troops led by General Jose Maria de Yanez captured the city of Tucson, Arizona. This marked the beginning of a period of Mexican military control over the region, which would last until the Mexican-American War in 1846-48.