Tucson is one of the longest continuously inhabited places in the United States. The Hohokam farmed the Santa Cruz floodplain for centuries; in 1775 the Spanish established the Presidio San Agustin del Tucson, a walled fort whose footprint still shapes the downtown grid. The settlement passed from Spain to Mexico, then to the United States with the 1854 Gadsden Purchase.
The Southern Pacific Railroad arrived in 1880, and downtown Tucson grew up around it. Congress Street became the commercial spine, lined with hotels, theatres, and businesses serving travelers stepping off the trains. Most of the landmarks on our walking tour date from this railroad-era boom of the early 1900s.
What follows is the documented history behind eight of those landmarks, compiled from primary archives at the Arizona Historical Society, the Pima County Library, and the Pima County Recorder.