Monday, June 22
On this date in 1854, the first steamer on the Colorado River, The Uncle Sam, sank at Pilot Knob.
On this date in 1857, the U.S. Government signed a contract with James E. Birch for semi-monthly mail and passenger service from San Antonio, Texas to San Diego via Tucson. The line became known as the “Jackass Mail” because the passengers had to ride mules from Fort Yuma to the coast.
On this date in 1892, the Casa Grande Ruins were declared a national monument by President Benjamin Harrison.
On this date in 1930, a cloudburst dropped 2 inches (5 centimeters) of rain on Tucson, and was immediately followed by hurricane force winds that ripped roofs off houses.