During the American Revolutionary War, Nassau Hall was possessed by both British and American forces and suffered considerable damage, especially during the Battle of Princeton on January 3, 1777. From June 30 to November 4, 1783, Princeton was the provisional capital of the United States, and Nassau Hall served as its seat of government. The Congress of the Confederation met in the building's library on the second floor. According to Princeton University, "Here Congress congratulated George Washington on his successful termination of the war, received the news of the signing of the definitive treaty of peace with Great Britain, and welcomed the first foreign minister—from the Netherlands—accredited to the United States."