Summer Olympic Games demand for tickets to all levels of each event, there was controversy when seats set aside for sponsors and National Delegations went unused in the early days. A system of reallocation was put in place so the empty seats were filled throughout the Games. Rio de Janeiro, Brazil hosted the 2016 Summer Olympics, becoming the third city in the Southern Hemisphere to host the Olympic Games after Melbourne, Australia, in 1956 and Sydney, Australia, in 2000, and the first South American city to host the Olympics. The preparation for these Games was overshadowed by controversies, including the instability of Brazil's
Olympic Games ceremony days, in the Olympic Stadium, and are thus the last medal presentation of the Games. In contrast to the opening ceremonies, many elements of the Olympic closing ceremonies gradually developed more by tradition than official mandate. Like the opening ceremonies, the closing ceremonies begins with the raising of the host country's flag and a performance of its national anthem. The traditional part of the closing ceremonies starts with the "Parade of Flags", where flag bearers from each participating country enter the stadium in single file, with the Greek flag in the lead (honoring the birthplace of the Olympic Games) and