Mexico

Mexico was a nation in North America.

History
In 1454 the Doctor, Susan, Ian Chesterton and Barbara Wright 1454. Barbara attempted (and failed) to alter the history of the Aztecs. (DW: The Aztecs) In 1867 during the Mexican Uprising the War Lords kidnapped several soldiers from the uprising use in their War Games. (DW: The War Games) In 1994 the Doctor, Ace and Bernice Summerfield visited Mexico, meeting Cristián Xochitl Alvarez and investigating Huitzilin and the 'Blue'. (NA: The Left-Handed Hummingbird)

By the early 21st century it was known to have a small time rift present in Mexico. (TWM: Shrouded) Following his encounter with Torchwood Three Captain John Hart left to reside in Mexico. (TW: Exit Wounds)

Notable individuals' ties to Mexico
Mexico was the birthplace of attempted dictator Ramón Salamander. (DW: The Enemy of the World)

Alternate realities

 * In the alternate reality of Pete's World, as the United States of Mexico, the country still extends up to Arizona - implying its victory in the 1840s Mexican-American War - and is run by a Prime Minister. (WEB: Cybus Industries website)