Texas During the Civil War By Apinktophat21 Jan 1, 1863 Battle of Galveston When the battle took place the date was January 1, 1863 .The battle took place in Galveston, TX. The significance of the battle’s location was the most important Texas port was there. Period: 1863 to 1863 Texas During the Civil War Sep 1, 1863 Battle of Sabine Pass May 12, 1865 Battle of Palmito Ranch