Georgia was one of the Thirteen Colonies that revolted against British rule in the American Revolution. It was the last of the Thirteen Colonies to be established as a colony. It became the fourth state after ratifying the United States Constitution on January 2, 1788.
On January 18, 1861 Georgia joined the Confederacy and became a major theater of the American Civil War. In December 1864, a large swath of the state from Atlanta to Savannah was destroyed during General William Tecumseh Sherman's March to the Sea. On July 15, 1870, following Reconstruction, Georgia became the last former Confederate state to be readmitted to the Union.