On May 4, 1493, Pope Alexander VI promulgated the Line of Demarcation, dividing the New World between Spain and Portugal in response the return of Christopher Columbus from his discovery of the American continents. However, neither country was entirely satisfied with the placement of the Line. A year later on June 7, 1494, the two nations signed the Treaty of Tordesillas, which moved the Line of Demarcation further west, giving Portugal claim to Brazil.