Beginning of the Champa–Đại Việt War

Date: November 28, 1470 • Location: Hanoi, Viet Nam

This milestone marked the outbreak and beginning of this historic period, which spanned 1470–1471.

Đại Việt emperor Lê Thánh Tông launched a military expedition against Champa, beginning the Champa–Đại Việt War.

Đại 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, the third emperor of the Lý dynasty. Đại Việt lasted until the reign of Gia Long, 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.