When the American Crisis developed into a revolution, no region would be more important to the struggle than the what is shown on this November 1769 map from the Gentleman's Magazine.
The "Delaware Bay" and River linked the Atlantic to the largest town in the American colonies, Philadelphia. Chesopeak Bay, the center of the lucrative tobacco trade, offered safe and easy access, through the four great rivers of Virginia, the mighty Susquahanna, and the smaller rivers of the Eastern Shore, to those plantations that were the single most economically important constituent of Britian's north American empire.