1. In 1732, the first group of colonists arrived in Georgia led by James Oglethorpe. This marked the beginning of the founding of the colony of Georgia.

2. On October 21, 1854, the first steam locomotive arrived in Atlanta, Georgia, marking the beginning of the city's transition to a major transportation hub.

3. The famous writer Flannery O'Connor was born on October 21, 1925, in Savannah, Georgia. Her works explored themes of religion and morality and were set in the Southern United States.

4. On October 21, 1958, the Atlanta Braves announced their move to Atlanta from Milwaukee. This marked the beginning of a new era for professional sports in the city.

5. In 1991, on October 21, Georgia welcomed its first female governor, Betty Sanders. This was a significant milestone in the state's history, as Sanders paved the way for future female leaders in politics.