1. On June 7, 1910, the first automobile arrived in Flagstaff, Arizona. The vehicle was a Stevens-Duryea, owned by Dr. Lorenzo S. Coconino.

2. On June 7, 1924, a severe dust storm hit Phoenix, causing widespread damage and respiratory issues for residents. The storm was the result of a drought that plagued the Southwest during the 1920s.

3. On June 7, 1934, the Hoover Dam, located on the Arizona-Nevada border, was dedicated by President Franklin D. Roosevelt. The dam, which was completed in 1935, helped bring electricity to the Southwest and provided essential irrigation to the region.

4. On June 7, 1969, the Phoenix Suns, the city's professional basketball team, were granted admission into the National Basketball Association (NBA). The Suns have since become one of the most successful franchises in the league.

5. On June 7, 2017, the Arizona Diamondbacks, the state's professional baseball team, set a franchise record by winning their eleventh consecutive game. The Diamondbacks went on to reach the playoffs that season, but were eliminated in the National League Division Series.