Mexican-American War By Crabwithwings Jan 1, 1823 Stephen Austin moves 300 families to Texas Jul 18, 1833 Stephen Austin goes to Mexico City to press for Texas statehood Period: Oct 2, 1835 to Apr 21, 1836 Texas Revolution Feb 23, 1836 Batlle of the Alamo Apr 21, 1836 Battle of San Jacinto May 14, 1836 Texas Gains Independence Nov 2, 1844 James K. Polk is elected President of the United States Dec 29, 1845 Annexation of Texas Mar 20, 1846 Zachary Taylor moves troops to Nueces River Period: Apr 25, 1846 to May 19, 1848 Mexican-American War May 11, 1846 Polk asks Congress to declare war on Mexico Jun 14, 1846 The Bear Flag Republic is declared Aug 13, 1846 Manuel Armijo surrenders New Mexico Jan 1, 1847 Stephen Kearney assumes control of Alta California for the US Mar 29, 1847 Winfield Scott captures Veracruz Sep 13, 1847 Mexico City surrenders to Winfield Scott and his army Sep 13, 1847 Los Niños Héroes jump to their deaths rather than surrender to US Army Feb 2, 1848 Treaty of Guadalupe Hidalgo is writen Mar 10, 1848 Article X of the Treaty of Guadalupe Hidalgo is eliminated May 19, 1848 Treaty of Guadalupe Hidalgo is ratified Jan 1, 1849 Henry David Thoreau publishes "Civil Disobedience"