New Mexico History Before Statehood By RaquelRe May 30, 1848 Mexican American War ends. https://www.history.com/topics/mexican-american-war/treaty-of-guadalupe-hidalgo 1862 Defeated Confederate troops retreat to Texas https://www.battlefields.org/learn/civil-war/sibleys-new-mexico-campaign 1863 Kit Carson defeat Navajos, The Long Walk ensues. http://newmexicohistory.org/people/navajo-long-walk-to-bosque-redondo-1864 1878 John Tunstall's murder starts the Lincoln County War https://www.history.com/this-day-in-history/murder-ignites-lincoln-county-war Jul 14, 1881 Billy the Kid is killed by Sheriff Pat Garrett, Ending the Lincoln County War https://www.history.com/this-day-in-history/billy-the-kid-is-shot-to-death