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: political and social support, general infrastructure, sports venues, Olympic Village, environment, accommodation, transport, security, past experience, finance, and legacy.
These submit a more extensive bid book and are subject to additional evaluation, which is presented to the IOC members.
IOC members from a candidate NOC may not vote in any round while their country remains in the election.
The 1904 Olympics were initially awarded to Chicago, but then moved to St. Louis to be co-located with the World Fair.
After the 1906 eruption of Mount Vesuvius, Italy returned the games to IOC, which awarded them to London.
Those games, and the 1944 Olympics awarded to London, were ultimately canceled due to the Second World War.
The 1956 Olympics were awarded to Melbourne, but Australian horse quarantine rules forced the equestrian events to be held in Stockholm.
It consists of the year the games were held or scheduled to be held, the date the decision was made, the city and country which issued the bid, the votes at the IOC Session for each voting round, and the ultimate host of the games.
It lists the country, city, and year for which failed, withdrawn, and successful bids were submitted.