The First Continental Congress was a meeting of delegates from 12 of the 13 British colonies that became the United States. It met from September 5 to October 26, 1774, at Carpenters' Hall in Philadelphia, Pennsylvania, after the British Navy instituted a blockade of Boston Harbor and Parliament passed the punitive Intolerable Acts in response to the December 1773 Boston Tea Party. During the opening weeks of the Congress, the delegates conducted a spirited discussion about how the colonies could collectively respond to the British government's coercive actions, and they worked to make a common cause.