The 2012 Summer Olympics, formally the Games of the XXX Olympiad
[The IOC numbers the Olympiads using Roman numerals.] and commonly known as London 2012, was an international multi-sport event that was held from 27 July to 12 August 2012 in London, United Kingdom. The first event, the group stage in women's football, began on 25 July at the Millennium Stadium in Cardiff, followed by the opening ceremonies on 27 July. 10,768 athletes from 204 National Olympic Committees participated. [
Following a bid headed by former Olympic champion Sebastian Coe and then-Mayor of London Ken Livingstone, London was selected as the host city on 6 July 2005 during the 117th IOC Session in Singapore, defeating bids from Moscow, New York City, Madrid, and Paris.] London became the first city to host the modern Olympics three times, [Athens has also hosted three IOC-organised events, in 1896, 2004 and the Intercalated Games in 1906. However, the 1906 Games are no longer officially recognised by the IOC, as they do not fit with the quadrennial pattern of the modern Olympics.] having previously hosted the Summer Games in 1908 and in 1948.
Construction for the Games involved considerable redevelopment, with an emphasis on sustainability. The main focus was a new Olympic Park, constructed on a former industrial site at Stratford, East London. The Games also made use of venues that already existed before the bid.
The Games received widespread acclaim for their organisation, with the volunteers, the British military and public enthusiasm praised particularly highly. The opening ceremony, directed by Danny Boyle, received widespread acclaim throughout the world, particular praise from the British public and a minority of widely ranging criticisms from some social media sites. During the Games, Michael Phelps became the most decorated Olympic athlete of all time, winning his 22nd medal. Saudi Arabia, Qatar, and Brunei entered female athletes for the first time, so that every currently eligible country has sent a female competitor to at least one Olympic Games. Women's boxing was included for the first time, thus the Games became the first at which every sport had female competitors. These were the final Olympic Games under the IOC presidency of Belgian Jacques Rogge, who was succeeded by German Thomas Bach next year.
The final medal tally was led by the United States, followed by China and host Great Britain. Several world and Olympic records were set at the games. Though there were several controversies, the 2012 games were deemed highly successful with the rising standards of competition amongst nations across the world, packed stadiums and smooth organisation. Furthermore, the focus on sporting legacy and post-games venue sustainability was seen as a blueprint for future Olympics.