<Table> 1964 Grand National <Tr> <Td_colspan="2"> Grand National </Td> </Tr> <Tr> <Th> Location </Th> <Td> Aintree Racecourse </Td> </Tr> <Tr> <Th> Date </Th> <Td> 21 March 1964 </Td> </Tr> <Tr> <Th> Winning horse </Th> <Td> Team Spirit </Td> </Tr> <Tr> <Th> Jockey </Th> <Td> Willie Robinson </Td> </Tr> <Tr> <Th> Trainer </Th> <Td> Fulke Walwyn </Td> </Tr> <Tr> <Th> Owner </Th> <Td> John Goodman </Td> </Tr> <Tr> <Th> Conditions </Th> <Td> Good to Soft </Td> </Tr> <Tr> <Td_colspan="2"> ← 1963 1965 → </Td> </Tr> </Table> <Tr> <Td_colspan="2"> Grand National </Td> </Tr>

When did team spirit win the grand national