Gia Định is a historical region in southern Vietnam, primarily known for its role as a center of trade and culture. It was established during the 17th century and became a significant area for the Nguyễn Dynasty. The region is now part of Ho Chi Minh City, which serves as Vietnam's largest city and economic hub. The name "Gia Định" originally referred to a small town that later expanded into a bustling urban area. Today, it is recognized for its rich history, diverse population, and vibrant economy, making it an important part of Vietnam's cultural heritage and development.