2. Azhwars's dates are also based on Tamil kings' List. 3. Tamil Kings's List is mainly based on Temple Epigraphy and Tamil literature. It is a fad to dismiss Epigraphy as nonsense if it gives you a date before BC and Tamil literary evidence as wild imagination despite the fact that Poompuhar,Tamil Nadu finds dating back to 12 000 years ago confirms Tsunami mentioned in it, Million year site near Chennai,Tamil Nadu.