1883: Andrew W. Holbrook becomes the first Pima County Sheriff's Department employee to die in the line of duty. Head jailer at the Pima County Jail, Holbrook is shot in the back by one of two prisoners attempting to escape. Though gravely wounded, he holds the jail's door closed until help arrives. He would die later the same day.

One of Holbrook's assailants, Joseph Casey, is hanged on April 15, 1884, and the other, Henry Sinclair, receives a life sentence that is served at Yuma Territorial Prison.

1887: A heavy earthquake hits most of the state at 2:12 p.m. Tucson'sfew two-story buildings sway threateningly, clocks are stopped and entire mountain sides in the Catalina Mountains give way with great clouds of dust visible for days afterward. Volcanoes are reported in the Dragoon Mountains and other mountain ranges.

1897: The Tucson chief of police asks the city council for a horse and saddle or a buggy for patrolling the town, but his request is refused because it would cost $12 a month to feed the horse.

1898: The Arizona Column of the Rough Riders leaves Prescott for Cuba amidst the greatest demonstration in that city's history.

1911: Cochise County supervisors, angry because a proposed state highway will bypass Bisbee, threaten a campaign to move the capital from Phoenix to Tucson.

1919: Tucson boys from the 158th Infantry come home from France.

1929: The largest single land deal in the history of Yuma County to that date is consummated with the sale of 30,000 acres of land in the San Christobal Valley to a California syndicate for the purpose of growing dates, citrus fruits and pecans.

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