Washington at Princeton, Jan. 3, 1777. Lithograph by D. McLellan, 1853. Surrender of General Burgoyne at Saratoga. Painting by John Trumbull.

Chronology - 1777

January - Battle of Princeton, New Jersey. George Washington establishes winter quarters at Morristown, New Jersey.
April - Danbury Raid and American troops under Benedict Arnold defeat the British at Ridgefield, Connecticut.
June - British General John Burgoyne leads an invasion from Canada.
July - British General John Burgoyne recaptures Fort Ticonderoga, New York. Battle of Hubbardton, Vermont. Marquis de Lafayette volunteers for the Continental Army.
August - Battle of Oriskany, New York. Battle of Bennington, Vermont.
September - Battle of Brandywine, Pennsylvania. Battle of the Clouds, Pennsylvania. Battle of Bemis Heights, New York. Battle of Freeman's Farm, New York. Battle of Paoli, Pennsylvania.
British under General Howe occupy Philadelphia.
October - Battle of Germantown, Pennsylvania. Battle of Saratoga, New York. British General John Burgoyne surrenders entire army.
November - British capture Fort Mifflin, Pennsylvania. Battle of Whitemarsh, Pennsylvania.
December - George Washington's army of about 10,000 soldiers spends the winter camped at Valley Forge, Pennsylvania.