How Many Summer Olympic Events Are There. Rio de janeiro, brazil, is the host city for the 2016. The event marked the first time that the olympic games—either summer or winter—were held in south america.
New sports are being added to the 2024 summer olympic games, while others are being removed. The recent summer olympics took place in rio de janeiro, brazil in 2016 where 205 nations participated which is the maximum participation number in the history of olympics.