the.com/hessian
German soldiers rented out to crush a revolution, now mostly known as scratchy potato-sack fabric.
rented armyBritain hired 30,000 Hessians to fight American colonists
fabric nameCoarse jute cloth named after Hesse, Germany
headless horsemanSleepy Hollow's ghost was a slain Hessian soldier
matrix mathA Hessian matrix maps a function's second derivatives
crossed the DelawareWashington routed sleeping Hessians at Trenton, 1776