"Tucson." YourDictionary, n.d. Web. 16 October 2018. <http://www.yourdictionary.com/Tucson>.
Tucson. (n.d.). Retrieved October 16th, 2018, from http://www.yourdictionary.com/Tucson
A city of southeast Arizona south-southeast of Phoenix. A Spanish mission was founded nearby in 1700, and the present city was first settled in 1776 as a walled presidio. It became part of the United States after the Gadsden Purchase (1853) and served as territorial capital from 1867 until 1877.x