Hanoi is the capital of Vietnam and the country's second largest city. Its population in 2009 was estimated at 2.6 million for urban districts, 6.5 million for the metropolitan jurisdiction. From 1010 until 1802, it was the most important political centre of Vietnam. It was eclipsed by Huế, the imperial capital of Vietnam during the Nguyễn Dynasty (1802–1945), but Hanoi served as the capital of French Indochina from 1902 to 1954. From 1954 to 1976, it was the capital of North Vietnam, and it became the capital of a reunified Vietnam in 1976, after the North's victory in the Vietnam War.The city lies on the right bank of the Red River. Hanoi is north of Ho Chi Minh City and west of Hai Phong city.October 2010 officially marked 1000 years since the establishment of the city. The Hanoi Ceramic Mosaic Mural is a 4 km ceramic mosaic mural created to mark the occasion.NamesHanoi has had many names throughout history, all of them of Sino-Vietnamese origin. During the Chinese domination of Vietnam, it was known first as Long Biên, then Tống Bình and Long Đỗ. In 866, it was turned into a citadel and named Đại La.HistoryPre-historyHanoi has been inhabited since at least 3000 BC. One of the first known permanent settlements is the Cổ Loa Citadel founded around 200 BC.