1904: The first meeting of the Arizona Automobile Association opens in Tucson with a parade and a visit to the San Xavier Mission.
1926: Yuma County Sheriff's deputies raid a dairy farm and find more moonshine than milk. The haul includes 200 gallons of liquor, 750 gallons of mash, 75 gallons of wine and a 100-gallon still.
1935: Arizona wins its first major victory in the long campaign to hold its share of Colorado River water. The U.S. Supreme Court says the state owns the east bank.
Want to share an important event from Tucson's history? Email it to firstname.lastname@example.org.