 Lý Thái Tổ is best known for relocating the imperial capital from Hoa Lư to Thăng Long (modern day Hà Nội) in 1010 AD.He is generally viewed as the founder of the city of Hà Nội.In 2010, the city of Hà Nội celebrated its 1000th anniversary and in honoring Lý Thái Tổ.