<Tr> <Td> Prehistory </Td> <Td> (Until 543 BC) </Td> </Tr> <Tr> <Td> Early kingdoms period </Td> <Td> (543 BC--377 BC) </Td> </Tr> <Tr> <Td> Anuradhapura period </Td> <Td> (377 BC--AD 1017) </Td> </Tr> <Tr> <Td> Polonnaruwa period </Td> <Td> (1056--1232) </Td> </Tr>

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