Phoenix Arizona has had an interesting history dating back to the 1800's when the area now known as downtown was purchased in 1870 as part of a 320 acre land deal. The city of Phoenix was incorporated on February 25, 1881, and needless to say a lot has changed since!
The construction of the dams that continue to provide vital water supplies to Phoenix were completed in the first two decades of the 1900's and allowed increased farming and expansion of retail and industrial business. The addition of transportation systems, railroads, and infrastructure really lead to explosive growth and the obvious need for housing.
The areas just adjacent to downtown such as Willo, Encanto-Palmcroft, Coronado, Garfield, FQ Story, and Windsor Square were once considered the suburbs. These areas were largely built from the 1920's to the 1940's, and today are experiencing a huge revival as people move back to the center of town.
Other historic areas include Arcadia, Biltmore, and the Northeast Village.