1. On May 18, 1864, the Battle of Adairsville occurred in northwest Georgia during the American Civil War. Confederate General Joseph Johnston attempted to delay the advancing Union troops of General William T. Sherman, but ultimately had to withdraw.

2. In 1920, Georgia ratified the 19th Amendment to the U.S. Constitution, granting women the right to vote. After Tennessee became the 36th state to ratify the amendment later that year, it was officially added to the Constitution.

3. May 18, 1980 marks the infamous eruption of Mount St. Helens in Washington state. While this event did not occur in Georgia, it had significant impact on the state's timber industry due to the falling ash damaging crops.

4. On May 18, 2013, a EF3 tornado struck the town of Adairsville, Georgia, causing significant damage to homes and businesses. Despite widespread destruction, there were no fatalities reported.

5. On May 18, 2018, Georgia Governor Nathan Deal signed legislation banning discrimination based on sexual orientation and gender identity in state adoptions and foster care. This marked a significant victory for the LGBTQ+ community in Georgia and beyond.