The document summarizes key events in the American Revolutionary War from 1775 to early 1778, including the battles of Lexington and Concord, Bunker Hill, and the Siege of Boston, as well as the formation of the Continental Army and Congress. It also discusses the publication of Common Sense, the Declaration of Independence, early battles in New York, and the pivotal American victory at Saratoga in 1777, which led France to enter the war as an American ally. The summary ends with Washington's army spending the harsh winter of 1777-78 at Valley Forge.