USA HISTORY

Detailed explanation-1: -Two years later Peter Blow died; Scott was subsequently bought by army surgeon Dr. John Emerson, who later took Scott to the free state of Illinois. In the spring of 1836, after a stay of two and a half years, Emerson moved to a fort in the Wisconsin Territory, taking Scott along.

Detailed explanation-2: -He left St. Louis on November 19, accompanied by Dred Scott, to report for duty at Fort Armstrong, Illinois (the stay referred to in court documents as Rock Island). Emerson’s assignment lasted for nearly three years and, under the conditions of the Northwest Ordinance of 1787, entitled Dred Scott to his freedom.

Detailed explanation-3: -It was an action of trespass vi et armis instituted in the Circuit Court by Scott against Sandford. Prior to the institution of the present suit, an action was brought by Scott for his freedom in the Circuit Court of St. Louis county, (State court, ) where there was a verdict and judgment in his favor.