Dai Viet was a historical name for Vietnam, particularly during the period from the 10th to the 18th centuries. It emerged after the Vietnamese successfully gained independence from the Chinese Tang Dynasty in 938 AD. The name reflects the country's cultural identity and its aspirations for sovereignty. During the Dai Viet period, the region saw significant developments in agriculture, trade, and culture. The Ly and Tran dynasties were notable for their contributions to literature, architecture, and the establishment of a centralized government. This era laid the foundation for modern Vietnam's national identity and heritage.