The Maryland State House, the oldest state house in the nation still in legislative use, was the place where General George Washington resigned his commission before the Continental Congress on December 23, 1783. There on January 14, 1784, Congress ratified the Treaty of Paris to end the Revolutionary War, and on May 7, 1784, appointed Thomas Jefferson plenipotentiary. From there, on September 14, 1786, the Annapolis convention issued the call to the states that led to the Constitutional Convention.