1. On June 8, 1942, the Navajo Nation declared war on Japan, becoming the only Native American tribe to do so in World War II.

2. In 1915, on June 8, the Arizona state legislature passed a law prohibiting the teaching of any language other than English in Arizona public schools. This controversial law, known as the Arizona "English Only" law, was repealed in 1990.

3. On June 8, 1989, actor and director John Wayne was posthumously awarded the Congressional Gold Medal at the John Wayne Memorial in the town of Wickenburg, Arizona.

4. In 1969, on June 8, the first women's rights parade in Arizona was held in Phoenix. This historic event was part of a nationwide movement that helped pave the way for equal rights for women.

5. On June 8, 1933, the University of Arizona opened its first observatory with a 13-inch telescope. Today, the university operates several telescopes and is known for its astronomy research and programs.