The Rio 2016 Summer Olympics held it's closing ceremony on what date?
Explanation
The Rio 2016 Summer Olympics held its closing ceremony on August 21, 2016. The closing ceremony marked the end of the 2016 Olympic Games, which took place in Rio de Janeiro, Brazil. During the ceremony, there were various performances, the handover of the Olympic flag to the next host city (Tokyo for the 2020 Summer Olympics), and the extinguishing of the Olympic flame. The Rio 2016 Summer Olympics featured athletes from around the world competing in a wide range of sports.