Was John Hancock really the first and third president of the US?
No, he was the 2nd President of the Second Continental Congress and the 7th President of the United States in Congress Assembled. This takes nothing away from him as a founding father, his importance in the Revolutionary Period of the US will always exist, both for his participation and for his leadership.
Yes, John Hancock was the first US President. The USA was born on July 4th, 1776 not April 30, 1789 when George Washington was inaugurated. John Hancock signed his name large on the Declaration of Independence not because he was making fun of King George's eyesight, but because he was the leader of the newly declared (u)nited States of America.
He served as president of the Second Continental Congress and was the first and third Governor of the Commonwealth of Massachusetts. He is remembered for his large and stylish signature on the United States Declaration of Independence, so much so that "John Hancock" became, in the United States, a synonym for "signature".
No. Neither man served on the US Supreme Court. John Adams was the second United States President, in office from March 1797 until March 1801, when he was succeeded by Thomas Jefferson. John Hancock signed the Declaration of Independence and served as first and third Governor of Massachusetts, as well as President of the Continental Congress (1775-1777) and President of the Massachusetts Provincial Congress. For more information, see Related Questions, below.