Former President Theodore Roosevelt at the dedication of Roosevelt Dam on March 18, 1911.

Courtesy Bureau of Reclamation and Salt River Project

1901: The Saguaro Cactus Bloom is named the official state flower by the Territorial Legislature.

1904: William C. Greene, owner of Greene Consolidated Copper Company of Cananea, brings to Arizona a chauffeur from New York to drive his $18,000 car. The chauffeur, who reportedly had two impressive holes in his head due to a collision with an ice wagon, terrifies locals by hitting Naco Road doing 70 mph.

1911: Former President Theodore Roosevelt arrives at Roosevelt Dam for its dedication. According to the U.S. Department of the Interior, Bureau of Reclamation, Roosevelt pressed a button at 5:48 p.m. that allowed the release of water from the reservoir. He also declares the two proudest achivements of his administration are signing the National Reclamation Act into law and the Panama Canal.

Want to share an important event from Tucson's history? Email it to