Spain and Portugal competed over territory in the Americas as a result of the voyages of

Christopher Columbus’s voyages across the Atlantic in 1492 and afterward led Spain to claim lands in the Americas. Portugal also asserted claims there, prompting the two countries to negotiate the Treaty of Tordesillas, which divided their spheres of influence. Vasco da Gama and Bartolomeu Dias are associated with Portuguese voyages around Africa, while Magellan’s expedition came later.

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