The Washington Crossing Visitor Center Museum focuses on the American Revolution and the military campaign known as the "Ten Crucial Days" from December 25, 1776, through January 3, 1777. During this time, the George Washington and the Continental Army crossed the Delaware River, and fought at the Battle of Trenton, the Battle of the Assunpink Creek, and the Battle of Princeton. It features the Harry Kels Swan Collection of Revolutionary War artifacts. Over 700 military items from the American and British Armies are included in the collection. The center also includes interpretive history exhibits that cover the Revolutionary War from its prelude in 1758 to the signing of the Treaty of Paris in 1783.