premise: The Siege of Fort Stanwix took place.
hypothesis: The Siege of Fort Stanwix ( also known at the time as Fort Schuyler ) began on August 2 , 1777 , and ended August 22 . Fort Stanwix , in the western part of the Mohawk River Valley , was then the primary defense point for the Continental Army against British and Indian forces aligned against them in the American Revolutionary War .