Hanoi is a sacred land of Vietnam. In the 3rd century BC, Co Loa ancient citadel (actually belonging to Dong Anh District) was chosen as the capital of the Au Lac Nation of Thuc An Duong Vuong (the King Thuc). Hanoi later became the core of the resistance movements against the Northern invasions.

Located in the middle of the Red River Delta, the town has gradually expanded to become a very populations and rich residential center.

At different periods, Hanoi had been selected as the chief city of Vietnam under the Northern domination.

In the autumn of Canh Tuat lunar years (1010), Ly Thai To, the founder of the Ly Dynasty, decided to transfer the capital from Hoa Lu Citadel to Dai La, and so he rebaptized it Thang Long (Soaring Dragon). The year 1010 then became an historical date for Hanoi and for the whole country in general.

For about a thousand years, the capital was called Thang Long, then changing to Dong Do, Dong Kinh, and finally to Hanoi, in 1831.

This sacred piece of land thereafter continued to be the theatre of many fateful events.