1919: The city of Tucson gives 82 acres on South Sixth Avenue to the War Department for use as an aviation field. The site later becomes home to the nation's first municipally owned airfield. Today, it's the Tucson Rodeo Grounds.
1973: Lightning from thunderstorms strikes five people, including a softball player at Santa Rita Park. One person is killed.
1981: Eight people are killed in a flash flood at Tanque Verde Falls, northeast of Tucson. A reported 15-foot wall of water rushes down the canyon and over the 100-foot falls. A helicopter, in the area for an earlier rescue, plucks at least 26 people from the raging waters of the Tanque Verde Wash.
Want to share an important event from Tucson's history? Email it to email@example.com.