Hanoi ( or ; , ) is the capital of the Socialist Republic of Vietnam and the country's second largest city by population. Its population in 2009 was estimated at 2.6 million for urban districts and 7 million for the metropolitan jurisdiction. The population in 2015 was estimated at 7.7 million people. 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. 

Hanoi (, "inside (the) river") has had many official and unofficial names throughout history. Hanoi has been inhabited since at least 3000 BC. The Cổ Loa Citadel in Dong Anh district served as the capital of the Âu Lạc kingdom founded by the Shu emigrant Thục Phán after his 258 BC conquest of the native Văn Lang.
When was Hanoi first inhabited? What did October 2010 mark? What was made to honor the occasion? How large is it? What is it the capital of? Does it have a large population? What does it rank for the country's population? What was significant from the years 1010 to 1802? What was Hue? What years were the Nguyen Dynasty? What was Hanoi the capitol of from 1902 to 1954? What about 1954 to 1976? What does the city lie to the right of? What is it north of? And west of?
3000 BC 1000 years since the establishment of the city The Hanoi Ceramic Mosaic Mural 4 km Socialist Republic of Vietnam 7.7 million people second largest city it was the most important political centre of Vietnam the imperial capital of Vietnam during the Nguyễn Dynasty 1802–1945 French Indochina it was the capital of North Vietnam right bank of the Red River Ho Chi Minh City Hai Phong city