What agreement set the boundary between the united states and british canada at the forty ninth parallel

the indians crossed artificial boundaries, setting the stage for conflict

worcester v. georgia, legal case in which the u.s. supreme court on march 3, 1832, held (5–1) that the states did not have the right to impose regulations on native american land. andrew jackson refused to enforce the ruling, the decision form the basis for most subsequent indian law in the united states.