Đại Việt

Đại Việt (大越, IPA: [ɗâjˀ vìət]; literally Great Việt) was the official name of multiple Vietnamese monarchies in eastern Mainland Southeast Asia from the 10th century AD to the early 19th century, centered around the region of present-day Hanoi. The initial name, Đại Cồ Việt, was adopted in 968 by Emperor Đinh Bộ Lĩnh, following his successful campaigns that ended the Anarchy of the 12 Warlords and lasted until the beginning of the reign of Lý Thánh Tông (r. 1054–1072), the third emperor of the Lý dynasty. Đại Việt lasted until the reign of Gia Long (r. 1802–1820), the first emperor of the Nguyễn dynasty, when the name was changed to Việt Nam in 1804. Under rule of bilateral diplomacy with Imperial China, it was known as the Principality of Giao Chỉ (975–1164) and later the Kingdom of Annam (1164–1804) when Emperor Xiaozong of Song recognized Đại Việt's independence and upgraded its status from principality to kingdom.

Đại Việt's history was divided into the rule of eight dynasties: Đinh (968–980), Early Lê (980–1009), Lý (1009–1226), Trần (1226–1400), Hồ (1400–1407), and Later Lê (1428–1789); the Mạc dynasty (1527–1677); and the short-lived Tây Sơn dynasty (1778–1802). It was briefly interrupted by the Hồ dynasty (1400–1407), which changed the country's name to Đại Ngu, and the Fourth Era of Northern Domination (1407–1427), when the region was administered as Jiaozhi by the Ming dynasty. Đại Việt's history can also be divided into two periods: the unified state, which lasted from the 960s to 1533, and the fragmented state, from 1533 to 1802, when there were more than one dynasty and several noble clans simultaneously ruling from their own domains. From the 13th to the 18th century, Đại Việt's borders expanded to encompass territory that resembled modern-day Vietnam, which lies along the South China Sea from the Gulf of Tonkin to the Gulf of Thailand.