As a political systems teacher, I have to tell you Hanson was not the first president of the United States of America. Every year in my class, I have one kid who tries to trip me up with this. Hanson was the president of Congress. Their was no such post as the President of the United States of America under the Articles of Confederation. The Articles had no executive branch - the Constitution added the post.

So Washington is, and always will be, the first president of the United States. Anyone who tells you otherwise is trying to argue semantics (and the semantics don't even agree with them).