One of the things people from outside the United States are not happy about is the fact that people inside the United States call themselves Americans, and the country itself America. That’s not fair, they’ll say, after all America is much larger than just the United States!
It turns out that the logic behind the naming is simple: while in much of the world, the number of continents has been fixed at five (Africa, America, Asia, Europe, Oceania), in America, there are seven continents (Africa, Antarctica, Asia, Europe, North America, South America, Oceania).
That many people think it’s five you see in the Olympic emblem, where the five colored rings represent the five continents. Red is for America, Yellow for Asia, Black for Africa, Blue for Oceania, and Green for Europe. That’s of course in keeping with the most cringe-worthy racism you could apply to the question.
That it is seven fits America’s predilection for Biblical numbers. Seven seems meaningful, God-given, necessary.
Of course, neither is right. Europe, for instance, is visibly just the Western end of Asia, separated from the main continent only by a middling chain of mountains that top neither “continent.” Oceania, on the other hand, is mostly a whole lot of water and a startling choice for a land mass, which is what a continent is meant to be.