<Tr> <Td> Middle Kingdom </Td> <Td> 2055--1650 BC </Td> </Tr> <Tr> <Td> 2nd Intermediate Period </Td> <Td> 1650--1550 BC </Td> </Tr> <Tr> <Td> New Kingdom </Td> <Td> 1550--1069 BC </Td> </Tr> <Tr> <Td> 3rd Intermediate Period </Td> <Td> 1069--664 BC </Td> </Tr>

The old kingdom middle kingdom and the new kingdom are significant because