The Indiana Army National Guard traces its unbroken history to 1801, when William Henry Harrison, Governor of the Indiana Territory, formed a voluntary militia to defend against the aggressive actions of some of the Native American tribes in the vast territory. The Indiana Rangers were formed in 1807. The militia and rangers participated in a major action in the 1811 Battle of Tippecanoe, and many participated in the invasion of Canada in the War of 1812. Many documents regarding the Indiana Territory's militia have been lost, especially during the capitol moved from Vincennes to Corydon and then to Indianapolis. In one unfortunate incident, a janitor sold a wagon load of official militia papers as "waste paper."