<Table> <Tr> <Th_colspan="2"> Battle of Britain </Th> </Tr> <Tr> <Td_colspan="2"> Part of the Second World War </Td> </Tr> <Tr> <Td_colspan="2"> An Observer Corps spotter scans the skies of London . </Td> </Tr> <Tr> <Td_colspan="2"> <Table> <Tr> <Th> Date </Th> <Td> 10 July--31 October 1940 (3 months and 3 weeks) </Td> </Tr> <Tr> <Th> Location </Th> <Td> British airspace </Td> </Tr> <Tr> <Th> Result </Th> <Td> British victory </Td> </Tr> </Table> </Td> </Tr> <Tr> <Th_colspan="2"> Belligerents </Th> </Tr> <Tr> <Td> United Kingdom Canada </Td> <Td> Germany Italy </Td> </Tr> <Tr> <Th_colspan="2"> Commanders and leaders </Th> </Tr> <Tr> <Td> Hugh Dowding Keith Park T. Leigh - Mallory Quintin Brand Richard Saul L. Samuel Breadner </Td> <Td> Hermann Göring Albert Kesselring Hugo Sperrle Hans - Jürgen Stumpff R.C. Fougier </Td> </Tr> <Tr> <Th_colspan="2"> Units involved </Th> </Tr> <Tr> <Td> Royal Air Force Royal Canadian Air Force Foreign pilots from (show) <Ul> <Li> Poland </Li> <Li> New Zealand </Li> <Li> Czechoslovakia </Li> <Li> Belgium </Li> <Li> Australia </Li> <Li> South Africa </Li> <Li> France </Li> <Li> Ireland </Li> <Li> United States </Li> <Li> Southern Rhodesia </Li> <Li> Jamaica </Li> <Li> Barbados </Li> <Li> Newfoundland </Li> <Li> Northern Rhodesia </Li> </Ul> </Td> <Td> Luftwaffe Corpo Aereo Italiano </Td> </Tr> <Tr> <Th_colspan="2"> Strength </Th> </Tr> <Tr> <Td> 1,963 serviceable aircraft </Td> <Td> <P> 2,550 serviceable aircraft . </P> </Td> </Tr> <Tr> <Th_colspan="2"> Casualties and losses </Th> </Tr> <Tr> <Td> 544 aircrew (RAF Fighter Command), 718 (RAF Bomber Command), 280 (RAF Coastal Command) killed 422 aircrew wounded 1,744 aircraft destroyed </Td> <Td> 2,585 aircrew killed and missing, 925 captured, 735 wounded 1,977 aircraft destroyed, 1,634 in combat and 343 non-combat </Td> </Tr> <Tr> <Td_colspan="2"> Around 90,000 civilian casualties, 40,000 of them fatal . </Td> </Tr> </Table> <Tr> <Th_colspan="2"> Battle of Britain </Th> </Tr>

What was the date of the battle of britain
find me the text answering this question