Each individual Olympic ring does not have a meaning, but the rings and background overall represent the colors of the flags of every country that participated in the Olympic Games at the time of the symbols' creation. The symbol was created by Pierre de Coubertin in 1912.
The symbol was not used until the Olympic Games in 1920 due to the committee to approve it having to be put on hold due to World War I. The Olympic rings began to see wide use and a huge growth in popularity leading up to the 1936 Summer Games. The carving of the rings into a milestone at Delphi for a torchbearer ceremony for the 1936 games would later lead to a mistaken claim that the rings were used in the ancient Greek games. This claim was made by two British authors named Lynn and Gray Poole. Despite the information being wrong, it brought more attention to the rings and significance to the games. With at least one ring color, or the white background, showing up on every flag that participates in the Olympics, it is a true show of international unity. It is listed in the Olympic Charter as a symbol of unity between the five regions that participate and as a sign that all who wish to participate are welcome.