The Đông Sơn culture (literally "East Mountain culture", but from the name of Đông Sơn village) was a Bronze Age culture in ancient Vietnam centered at the Red River Valley of northern Vietnam from 700-500 BC until the first century AD. It was the last great culture of Văn Lang (as Vietnam was known then) and continued well into the next Vietnamese state of Âu Lạc. Its influence spread to other parts of Southeast Asia, including Maritime Southeast Asia, from about 1000 BC to 1 BC.