Texas during the Civil War and Reconstruction By mrsgoad Nov 6, 1860 Lincoln is elected the 16th president of the U.S. Feb 1, 1861 Texas declared its secession from the United States Mar 16, 1861 Governor Sam Houston is evicted from office for refusing to take an oath of loyalty to the Confederacy. Apr 12, 1861 The Civil War begins - Confederate troops attack Fort Sumter Period: Apr 12, 1861 to Apr 9, 1865 American Civil War Jan 1, 1863 Emancipation Proclamation issued by President Lincoln Apr 9, 1865 Civil War Ends - Confederates surrender at Appomattox Court House, Virginia Period: Apr 10, 1865 to Feb 15, 1876 Reconstruction Era in Texas Mar 8, 1870 Texas was readmitted to the Union Feb 15, 1876 The Constitution of 1876 - signaled the end of Reconstruction in Texas.