This is a timeline of Sri Lankan history, comprising important & territorial changes and political & economic events in Sri Lanka and its predecessor states. To read about the background to these events, see History of Sri Lanka.
Note
Do not add minor event as this timeline is for "important & territorial changes and political & economic events in Sri Lanka and its predecessor states".
A Sinhalese chieftain named Lokeshwara, temporarily defeats the Chola forces and establishes a military base in Ruhuna.
1054
Keshadhatu Kasyapa, a pretender to the Sinhalese throne, establishes a dominion in Eastern Ruhuna after driving away Chola forces, which would last until 1055.
1055
A fifteen-year-old prince named Kitti, belonging to a royal bloodline, annexes the domains of Lokeshwara and Keshadathu Kasyapa, uniting Ruhuna under his rule. Cholas are further pushed back from the South.
1070
Prince Kitti, who was given the title Vijayabahu, launches a seventeen-year campaign and successfully drives out the Cholas from Sri Lanka.
1070
Vijayabahu is crowned as the first king of Polonnaruwa.
Kandyan Convention: The Kingdom of Kandy is ceded to the British in an agreement signed between British Governor Sir Robert Brownrigg and the Kandyan chiefs.
^Deraniyagala, Siran U. "Pre and Protohistoric settlement in Sri Lanka". International Union of Prehistoric and Protohistoric Sciences. XIII U. I. S. P. P. Congress Proceedings- Forli, 8–14 September 1996. Retrieved 15 July 2014.