 This site is coincide to the legend what belonged to one tribe's totem.Beside, Dr. Lê Mạnh Thát negated the survival of site "Cổ Loa Citadel", because he saw, legend of An Dương Vương was only reflected or imitated to the "Mahabharata".According to folklore, Thục Phán defeated the last of the Hung kings in 257  and founded the kingdom of Âu Lạc, choosing the site of Cổ Loa as his capital.