Texas Timeline 1800-1900 By ssatchell@twu.edu Sep 16, 1810 Mexico declares independence from Spain 1822 Moses Austin secures empresarial grant and “Old Three Hundred” Americans settle Texas Apr 6, 1830 Mexico bans any more immigration into Texas by settlers from the United States Oct 2, 1835 Texas Revolution begins at the Battle of Gonzales Mar 2, 1836 Texans are defeated by the Mexican army BUT Houston defeats Santa Anna. Tx gains Independence. Dec 29, 1845 Texas is admitted to the Union Period: 1861 to 1865 Civil War leads Texas to secede from Union and join the Confederate States of American Jun 19, 1865 African American slaves in Texas are emancipated on Juneteenth Feb 15, 1876 Texas Constitution is adopted 1894 Oil is discovered in Corsicana, Texas