1. Arizona became a state: On June 19, 1910, Arizona officially became the 48th state to join the Union.

2. Navajo Code Talkers Day: June 19 is also recognized as Navajo Code Talkers Day in Arizona. This day honors the Navajo soldiers who used their language as an unbreakable code to relay messages during World War II.

3. The Great Arizona Mine Strike: In 1983, on June 19, the Great Arizona Mine Strike began. This was a labor dispute that lasted for three years and involved almost 13,000 workers in the copper mining industry.

4. Forest fire in eastern Arizona: On June 19, 1990, a forest fire broke out in eastern Arizona that burned more than 60,000 acres of land. It was considered one of the largest wildfires in the state's history.

5. Basketball champion: On June 19, 1993, the Phoenix Suns won Game 6 of the NBA Finals against the Chicago Bulls. Although they ultimately lost the championship, it was a momentous occasion for the city of Phoenix and their basketball team.