After two unsuccessful attempts, the USS Constitution was
launched in Boston Harbor. The a 44-gun U.S. Navy frigate,
built to fight Barbary pirates off the coast of Tripoli, performed commendably during those conflicts, and in 1805 a peace treaty
with Tripoli was signed on the Constitution‘s deck.

The USS Constitution is the world’s oldest commissioned naval
warship still afloat. 

Constitution fires her cannons as she is tugged through
Boston Harbor in 2021.