what was the significance of the european explorers
His voyage opens the Americas to later European explorers. May 4, 1493 The Line of Demarcation divides the world between Spain and Portugal. Spain and Portugal press rival claims to the lands Columbus explores, and in 1493 Pope Alexander VI steps in to keep the peace.He sets a Line of Demarcation, which divides the non-European world into two zones.he Line of Demarcation divides the world between Spain and Portugal. Spain and Portugal press rival claims to the lands Columbus explores, and in 1493 Pope Alexander VI steps in to keep the peace. He sets a Line of Demarcation, which divides the non-European world into two zones.