<Tr> <Td_colspan="2"> Political structure </Td> <Td> Intergovernmental organisation </Td> </Tr> <Tr> <Td_colspan="2"> Secretary ‐ General </Td> <Td> </Td> </Tr> <Tr> <Td> </Td> <Td> 1920--33 </Td> <Td> Sir Eric Drummond </Td> </Tr> <Tr> <Td> </Td> <Td> 1933--40 </Td> <Td> Joseph Avenol </Td> </Tr>

How many times did the league of nations meet