What year does assassin's creed 3 take place?

It focuses around the American war of Independence (American Revolution) around 1776, but the storyline kind of develops the character that you play leading up to the Revolution. I'm not sure how old Connor is but it would be around 1750 going up to the end of the war at around 1781 ending with the Battle of the Chesapeake, which kind of ended the war.