<Table> <Tr> <Th> Round </Th> <Th> Opposition </Th> <Th> Score </Th> <Th> Venue </Th> <Th> Ref </Th> </Tr> <Tr> <Th> 3rd </Th> <Td> Sheffield United </Td> <Td> 3--2 </Td> <Td> Bramall Lane (a) </Td> <Td> </Td> </Tr> <Tr> <Th> 4th </Th> <Td> Port Vale </Td> <Td> 2--2 </Td> <Td> Old Recreation Ground (a) </Td> <Td> </Td> </Tr> <Tr> <Th> 4th (replay) </Th> <Td> Port Vale </Td> <Td> 1--0 </Td> <Td> Arsenal Stadium (h) </Td> <Td> </Td> </Tr> <Tr> <Th> 5th </Th> <Td> Liverpool </Td> <Td> 2--0 </Td> <Td> Arsenal Stadium (h) </Td> <Td> </Td> </Tr> <Tr> <Th> Quarter - final </Th> <Td> Wolverhampton Wanderers </Td> <Td> 2--1 </Td> <Td> Arsenal Stadium (h) </Td> <Td> </Td> </Tr> <Tr> <Th> Semi-final </Th> <Td> Southampton </Td> <Td> 2--1 </Td> <Td> Stamford Bridge (n) </Td> <Td> </Td> </Tr> </Table> <Tr> <Th> Round </Th> <Th> Opposition </Th> <Th> Score </Th> <Th> Venue </Th> <Th> Ref </Th> </Tr> <Tr> <Th> 3rd </Th> <Td> Sheffield United </Td> <Td> 3--2 </Td> <Td> Bramall Lane (a) </Td> <Td> </Td> </Tr> <Tr> <Th> 4th </Th> <Td> Port Vale </Td> <Td> 2--2 </Td> <Td> Old Recreation Ground (a) </Td> <Td> </Td> </Tr>

When was arsenal first fa cup win and who did they defeat