1. On December 13, 1864, during the Civil War, Union forces under General William T. Sherman captured the city of Savannah, Georgia. This victory marked the end of Sherman's famous "March to the Sea" campaign.

2. In 1937, on December 13, Atlanta's Terminal Station officially opened. The station served as the city's main railway station until it was closed in 1970 and demolished in 1972.

3. The Atlanta Hawks basketball team played their first game in Atlanta on December 13, 1968, after relocating from St. Louis. The game was played against the Cincinnati Royals (now the Sacramento Kings) and the Hawks won by a score of 121-115.

4. December 13, 2005, marked the opening of the new Georgia Aquarium in Atlanta. At the time of its opening, it was the largest aquarium in the world, spanning over 550,000 square feet and featuring more than 100,000 animals.

5. On December 13, 1998, the Atlanta Falcons beat the San Francisco 49ers in a thrilling overtime game. The win secured the Falcons' place in the NFL playoffs for the first time in four years.