The first Olympics game was played at Helsinki in 1928 in Greece.
Baron Coubertin
1896.
1800 Was the day the greek olymipic.
Day 4 of the 2012 Olympics was when NZ got their first medal. it was a bronze won by the NZ equestrian team.
The first modern day Olympics were held in Greece in 1896.
Soccer (or Football) was held on the first day of the London 2012 Olympics on July 25th. This was two days before the opening ceremony held on the 27th.
Men sports (races).
Athens
1200m race
United States: 1 Gold 2 Silver 2 Bronze on the first day July 28th summer Olympics 2012 according to The Examiner.
Sushil Kumar was holding India's flag on the first day in London Olmpics.