During the American Revolutionary War, the Battle of Wyoming took place in the valley on July 3, 1778, in which more than 300 Revolutionaries died at the hands of Loyalists and their Iroquois allies. The incident was depicted by the Scottish poet Thomas Campbell in his 1809 poem "Gertrude of Wyoming". At the time, rebel colonists widely believed that Joseph Brant, a Mohawk chief, had led the Iroquois forces; in the poem, Brant is described as the "Monster Brant" because of the atrocities committed. Later colonists determined that Brant had not been present at this conflict. The popularity of the poem may have led to the state of Wyoming later being named after the valley.