<Table> <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> <Tr> <Td> Transitional period </Td> <Td> (1232--1505) </Td> </Tr> <Tr> <Td> Crisis of the Sixteenth Century </Td> <Td> (1505--1594) </Td> </Tr> <Tr> <Td> Kandyan period </Td> <Td> (1594--1815) </Td> </Tr> <Tr> <Td> British Ceylon </Td> <Td> (1815--1948) </Td> </Tr> <Tr> <Td> Contemporary Sri Lanka </Td> <Td> (1948--present) </Td> </Tr> </Table> <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>

Who was the founder of panwar dynasty in garhwal