1910: The Maricopa Reservation is quarantined due to an outbreak of whooping cough and measles.

1923: Pipe Spring, a Mormon settlement, fort and site of the first telegraph station in Arizona territory, is made a National Monument.

1929: Lady Mary Heath, British aviatrix, stops in Yuma during her aerial tour of the United States.

Want to share an important event from Tucson's history? Email it to krumore@azstarnet.com.