Lý Thái Tổ
The Millennial Anniversary of Hanoi () was celebrated from 1 to 10 October 2010, the 1,000th anniversary of the foundation of the capital Thăng Long by the emperor Lý Thái Tổ. There were many events that were held in 2009 and 2010 to commemorate the Millennial Anniversary including cultural and traditional festivals, inaugurations of major projects of Hanoi among others.