1. On August 14, 1912, Arizona became the 48th state of the United States, making it the last of the contiguous states to join the union.
2. In 1953, the Grand Canyon National Park, located in Arizona, was officially dedicated as a national park by President Eisenhower.
3. On August 14, 2003, a massive power outage hit the northeastern United States and parts of Canada, including parts of Arizona. The outage affected an estimated 55 million people and lasted for several days.
4. In 1935, the infamous "Apache Kid" was killed in a shootout with law enforcement in Arizona. The Apache Kid was a notorious outlaw who had been on the run for years and was wanted for a number of crimes.
5. On August 14, 1859, the first organized gold mining operation in Arizona began at the Gila City mines. The mines were located in present-day Yuma County and played an important role in the early development of Arizona's mining industry.