Far too many people do not have very good knowledge of the history of the United States. For example, many people are under the mistaken impression that George Washington was the First President of the United States. In fact, there were seven (count them – 7) Presidents who preceded George Washington, the first of whom was John Hanson.
Yes, you correctly read what I wrote, John Hanson was the First President of the United States. And, it was John Hanson who declared that the fourth Thursday of every November was to be Thanksgiving Day.
But, do not take my word for it, please go on over to read:
John Hanson, American Patriot and First President of the United States
On the other hand, Snopes disputes the claim that John Hanson was the First President of the United States of America professing it to be a false claim. I guess it all depends on your own personal preference of the definition of the word “President” and how you think the word is used. I suppose it also depends on your perspective of when you believe the name “United States of America” became appropriate in making reference to this country.
You may also wish to read the Wikipedia article about John Hanson.
It just might behoove you to also take a look-see (especially Article 1 that uses the term “The United States of America”) at:
The Articles of Confederation article from Wikipedia
The text of The Articles of Confederation from U.S. Constitution Online