1. In 1863, a group of miners founded the town of Prescott in central Arizona. The town became the capital of the Arizona Territory, and its first territorial governor, John Noble Goodwin, was inaugurated on January 9.

2. In 1915, the Arizona State Board of Health was established to oversee public health issues in the state. Among its first tasks was to create regulations for the treatment of tuberculosis, a disease that was prevalent in Arizona and other Western states at the time.

3. In 1930, the Arizona State University campus was dedicated in Tempe. The university began as the Tempe Normal School in 1885, and it has grown into one of the largest public universities in the United States.

4. In 1962, the Arizona Diamondbacks baseball team played its first game as a member of the National League. The team, which is based in Phoenix, has won five division titles and one National League pennant since its founding.

5. In 2011, Congresswoman Gabrielle Giffords was shot at a public event in Tucson. The shooting left six people dead and 13 others wounded, including Giffords. The tragedy sparked a nationwide discussion about gun control and mental health issues.