<Tr> <Td> </Td> <Td> 661--750 </Td> <Td> </Td> </Tr> <Tr> <Td_colspan="3"> The Umayyad Caliphate at its greatest extent in 750 AD </Td> </Tr> <Tr> <Td_colspan="2"> Capital </Td> <Td> Damascus (661--744) Harran (744--750) </Td> </Tr> <Tr> <Td_colspan="2"> Capital - in - exile </Td> <Td> Córdoba (756--1031) </Td> </Tr>

What was the main goal of the umayyad dynasty