After Willaim Penn returned to England his sons began to sell land owned by the Lenape
The Penns presented an old and invalid document that deeded as much land to the Penns as could be covered in a day-and-a-half length’s walk. The Lenape trusted and had a good relationship with William so they agreed.
The Penns had the path cleared and hired the three fastest runners in the province to run the distance. Only one finished and ran 55 miles.
The Penns additionally tilted the map when drawing lines to the Delaware to make the distance farther.
The Penns ended up acquiring 1200 square miles of Lenape land in PA (~the size of Rhode Island)