A women's football match in Wales will kick off the 2012 Olympics programme a two days before the Olympic flame is lit in London.
The competition schedule with dates, times and prices for the 19-day event has been published, with six and a half million tickets going on sale in a month.
The first event will be 200km away at Cardiff's Millennium Stadium, which hosts a preliminary match for the women's football.
Also of note the marathon will start and finish outside Buckingham Palace while ticket prices for the opening ceremony range from $40 to $6,500.
The first medals of the Games will be won in the women's weightlifting, men's air pistol and women's air rifle competitions, plus the cycling men's road race