1155 ASHOKA

Mahavamsa -The Mahavamsa ("Great Chronicle") is a historical poem written in the Pali language, of the kings of Sri Lanka. It covers the period from the coming of King Vijaya of Kalinga (ancient Orissa) in 543 BCE to the reign of King Mahasena (334–361).As it often refers to the royal dynasties of India, the Mahavamsa is also valuable for historians who wish to date and relate contemporary royal dynasties in the Indian subcontinent. It is very important in dating the consecration of the Maurya emperor Ashoka.

Dipavamsa -The Dipavamsa, or "Deepavamsa", (i.e., Chronicle of the Island, in Pali) is the oldest historical record of Sri Lanka. The chronicle is believe to be compiled from Atthakatha and other sources around the 3-4th century, King Dhatusena (4th century CE) had orderd that the Dipavamsa be recited at the Mahinda (son to Ashoka )festival held annually in Anuradhapura.