<Tr> <Th> North - South Kingdoms </Th> <Td> 698 </Td> </Tr> <Tr> <Th> Goryeo dynasty </Th> <Td> 918 </Td> </Tr> <Tr> <Th> Joseon dynasty </Th> <Td> 1392 </Td> </Tr> <Tr> <Th> Korean empire </Th> <Td> October 12, 1897 </Td> </Tr>

North korea is about the size of what state