Reproduction courtesy of the Society of the Cincinnati, which holds the original document in their collection.
Historical map of the Revolutionary War Battle of Brandywine
On the morning of September 11, 1777, George Washington posted 14,000 troops of the Continental Army along the banks of Brandywine Creek, believing that he had securely covered all possible fords. This turned out not to be the case, and 15,500 British troops under General William Howe advanced under the cover of a heavy fog, demonstrating to Washington's front while moving troops around to attack his exposed right flank. General Nathanael Greene’s men counterattacked, but ultimately the Continental Army was forced to retreat, leaving the path open for the British Army to occupy Philadelphia.