1. In 1912, Arizona became the 48th state of the United States on November 5th. It was the last of the contiguous states to be admitted to the union.

2. On November 5, 1915, the Arizona State Fair was first held in Phoenix. It has since become an annual event, attracting visitors from all over the state.

3. In 1916, the first woman, Frances Willard Munds, was elected to the Arizona State Senate on November 5th. She was a vocal supporter of suffrage and was instrumental in helping to secure the right to vote for women in Arizona.

4. In 1986, the Copper Basin Railway began operations on November 5th, transporting copper ore from mines in the Globe-Miami area to a processing plant in Hayden. The railway has since become an important part of Arizona's mining industry.

5. On November 5, 2013, Arizona became the sixth state in the nation to legalize recreational marijuana use on a trial basis, after passing Proposition 203. The law allowed individuals aged 21 and over to possess and use up to one ounce of marijuana for recreational purposes. It was later expanded to include the creation of a regulated market for marijuana sales.