Texas History Timeline By DanielleStudent1 Jun 2, 1519 Texas Explored and Mapped by a European for the First Time 1 1528 Cabeza de Vaca's Expedition 2 1685 Texas Claimed for France 3 1821 U.S. Colonists Settle in Texas 4 Period: Oct 2, 1835 to Apr 21, 1836 Texas Revolution 5 Period: Feb 23, 1836 to Mar 6, 1836 Battle of the Alamo 6 Mar 2, 1836 Texas Declaration of Independence 7 Apr 21, 1836 Battle of San Jacinto 8 Dec 29, 1846 Texas Annexed as U.S. State 9 Feb 2, 1848 Treaty of Guadalupe Hidalgo 10 1850 Compromise of 1850 11 Mar 2, 1860 Texas Joins the Confederacy 12 Mar 30, 1870 Texas Rejoins the Union 13 Feb 15, 1876 Modern-Day Texas Constitution Adopted 14 Sep 8, 1900 Hurricane at Galveston 15