The 2016 Summer Olympics, officially known as the Games of the XXXI Olympiad, is a major international multi-sport event due to be celebrated in the tradition of the Olympic Games, as governed by the International Olympic Committee (IOC). The host city of the Games will be Rio de Janeiro, Brazil. They are scheduled to be held from August 5 to 21, 2016, making these the first Summer Olympics to be held during the host city's winter. There will be 30 competition venues mainly in Barra da Tijuca, but also in three other zones: Copacabana, Deodoro, and Maracanã. It will mark the first time a South American city hosts the event, the first to host the hemisphere's winter, and also the first time a Lusophone (Portuguese-speaking) country hosts the event.