<P> Four of the 1896 venues were reused as competition venues for the 2004 Games . The velodrome would be renovated into a football stadium in 1964 and was known as Karaiskakis Stadium . This venue was renovated in 2003 for use as a football venue for the 2004 Games . During the 2004 Games, Panathinaiko Stadium served as host for archery competitions and was the finish line for the athletic marathon event . The city of Marathon itself served as the starting point for both marathon events during the 2004 Games . The Zappeion served as the first home of the organizing committee (ATHOC) for the 2004 Games from 1998 to 1999, and served as the main communications center during those Games . </P> <Table> <Tr> <Th> Venue </Th> <Th> Sports </Th> <Th> Capacity </Th> <Th> Ref . </Th> </Tr> <Tr> <Td> Athens Lawn Tennis Club </Td> <Td> Tennis </Td> <Td> Not listed . </Td> <Td> </Td> </Tr> <Tr> <Td> Bay of Zea </Td> <Td> Swimming </Td> <Td> Not listed . </Td> <Td> </Td> </Tr> <Tr> <Td> Kallithea </Td> <Td> Shooting </Td> <Td> Not listed . </Td> <Td> </Td> </Tr> <Tr> <Td> Marathon (city) </Td> <Td> Athletics (Marathon (sport)), Cycling (Individual road race). </Td> <Td> Not listed . </Td> <Td> </Td> </Tr> <Tr> <Td> Neo Phaliron Velodrome </Td> <Td> Cycling (track) </Td> <Td> Not listed . </Td> <Td> </Td> </Tr> <Tr> <Td> Panathinaiko Stadium </Td> <Td> Athletics, Gymnastics, Weightlifting, and Wrestling </Td> <Td> 80,000 </Td> <Td> </Td> </Tr> <Tr> <Td> Zappeion </Td> <Td> Fencing </Td> <Td> Not listed . </Td> <Td> </Td> </Tr> </Table> <Tr> <Th> Venue </Th> <Th> Sports </Th> <Th> Capacity </Th> <Th> Ref . </Th> </Tr> <Tr> <Td> Athens Lawn Tennis Club </Td> <Td> Tennis </Td> <Td> Not listed . </Td> <Td> </Td> </Tr>

When were the 1st olympic games held why were they held