Technically, anyone who lives in the Americas is American. Canada, the US and Mexico make up North America, then there is Central America and South America. Every countries citizens refer to themselves by their country of birth to be specific about where they are from. The only country that doesn't refer to their country is us in the United States. Why? 1. We are ego maniacs who think the universe revolves around us and so we have no problem taking the American title for ourselves. 2. United Statesian or United States of American sounds stupid.