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The protection and recognition of Mexican land grants in the Treaty of Guadalupe Hidalgo and the subsequent loss of land and status for Californio and Mexican landowners.
California ceased to be Mexican territory after U.S. military conquest during the Mexican–American War and the formal cession in the Treaty of Guadalupe Hidalgo (signed February 2, 1848), in which Mex...
(signed Feb. 2, 1848) formally ended the , ceded roughly 525,000 square miles to for $15 million, and on paper offered Mexican residents in the ceded territories a clean choice: relocate to or remain ...
of 1853 was a targeted territorial adjustment that completed and clarified portions of – border left ambiguous by the , adding the southern strips of and New Mexico and altering boundary articles of t...