2012 Summer Olympics in the programme for the first time, and 36 women competed in three weight classes. There was a special dispensation for the shooting events, which would otherwise have been illegal under UK gun law. In tennis, mixed doubles returned to the Olympic programme for the first time since 1924. London's bid featured the same 28 sports that had been included in other recent Summer Olympics, but the IOC voted to drop baseball and softball from the 2012 Games just two days after London had been selected as the host city. There was an appeal, but the IOC voted to uphold
Bids for the 2012 Summer Olympics bid is announced. Following the announcement of the host city, the successful bid delegation signs the "Host City Contract" with the IOC, which delegates the responsibilities of the Games organisation to the city and respective NOC. The deadline to submit applications for the 2012 Summer Olympic Games was 15 July 2003. The nine cities that submitted bids before that date also met the 15 January 2004 deadline for submission of the first phase questionnaire. Through analysis of the questionnaires, the IOC gave a weighted-average score to each city based on the scores obtained in each of the questionnaire's eleven themes: