Mexican-American History 1821-1865 (Slavery, War, and Land Distribution) By lyporterfollows Feb 24, 1821 Mexico formally abolishes slavery with the Plan of Iguala Plan of Iguala Oct 4, 1824 Mexico's new Constitution effectively frees existing slaves 1824 Constitution of Mexico Apr 27, 1830 President Anastasio Bustamante of Meixco orders the abolition of slavery be implented in Mexican Texas. Mexican Texas Jun 26, 1832 Battle of Velasco Battle of VelascoThis is the first violent incident between texan colonists and the Mexican govrnment. Oct 1, 1832 Colonists in Texas hold a convention to demand that U.S. citizens be allowed to immigrate to Texas Convention of 1832 Feb 23, 1836 Battle of the Alamo in Texas Battle of the Alamo Mar 2, 1836 Texans sign the Texas Declaration of Indipendence Texas Declaration of Indipendence Dec 29, 1845 The United States annexes the Republic of Texas as the 28th state Texas Annexation Apr 25, 1846 Start of the Meixcan American War (also known as the First American Intervention) Mexican American War Feb 2, 1848 Signing of the Treaty of Guadalupe Hidalgo ends the Mexican American War and ceedes Mexican Territory to the U.S. Treaty of Guadalupe Hidalgo Dec 30, 1853 Gadsden Purchase Gadsden Purchase Apr 12, 1861 Start to the American Civil War American Civil War Jan 1, 1863 Abraham Lincoln signs the Emancipation Proclamation, declaring slaves in Confederate areas free Emancipation Proclamation Apr 9, 1865 End of the American Civil War Dec 6, 1865 The 13th Amendment to the United States Constitution abolishes slavery within the United States 13th Amendment to the United States Constitution
