<Tr> <Td> </Td> <Td> Egypt </Td> <Td> Cairo </Td> <Td> 16,225,000 </Td> <Td> 969 AD </Td> <Td> </Td> </Tr> <Tr> <Td> </Td> <Td> Iraq </Td> <Td> Baghdad </Td> <Td> 6,960,000 </Td> <Td> 762 AD </Td> <Td> </Td> </Tr> <Tr> <Td> </Td> <Td> Saudi Arabia </Td> <Td> Riyadh </Td> <Td> 6,030,000 </Td> <Td> 100--200 AD </Td> <Td> </Td> </Tr> <Tr> <Td> </Td> <Td> Sudan </Td> <Td> Khartoum </Td> <Td> 5,345,000 </Td> <Td> 1821 AD </Td> <Td> </Td> </Tr>

Which part of the world is africa in