<Tr> <Td> <Table> <Tr> <Th_colspan="2"> Classical antiquity </Th> </Tr> <Tr> <Td> Macedonian and Ptolemaic Egypt </Td> <Td> 332--30 BC </Td> </Tr> <Tr> <Td> Roman and Byzantine Egypt </Td> <Td> 30 BC--641 AD </Td> </Tr> <Tr> <Td> Sasanian Egypt </Td> <Td> 619--629 </Td> </Tr> </Table> </Td> </Tr> <Table> <Tr> <Th_colspan="2"> Classical antiquity </Th> </Tr> <Tr> <Td> Macedonian and Ptolemaic Egypt </Td> <Td> 332--30 BC </Td> </Tr> <Tr> <Td> Roman and Byzantine Egypt </Td> <Td> 30 BC--641 AD </Td> </Tr> <Tr> <Td> Sasanian Egypt </Td> <Td> 619--629 </Td> </Tr> </Table> <Tr> <Th_colspan="2"> Classical antiquity </Th> </Tr> <Tr> <Td> Macedonian and Ptolemaic Egypt </Td> <Td> 332--30 BC </Td> </Tr>

Which of the following have historians studied most to learn about egypts middle kingdom