hold it against the rising power of Islam.

Columbus did not know he had discovered the continent we call America.
He died in the belief that he had found unknown parts of Asia; that he
had discovered a shorter and safer route for trade with the East, and
that he had given new proof of the assertions made by astronomers that
the earth is round. The men who immediately followed him--Vespucius
and the Cabots--believed only that they had confirmed and extended his
discovery. Cabot first found the mainland of North America, Vespucius
the mainland of South America, but neither knew he had found a new
continent. Each saw only coast lines; made landings, it is true; saw
and conversed with natives, and Vespucius fought with natives; but of
the existence of a new world, having continents comparable to Europe,
Asia, or Africa, with an ocean on both sides of them, neither ever so
much as dreamed.

Under the splendid inspiration of Prince Henry the Navigator, an
inspiration that remained potent throughout Portugal long after his
death, Bartholomew Dias, five years before Columbus made his voyage to
America, rounded the Cape of Good Hope, actually sailed into the
Indian Ocean, and was pressing on toward India when his crew, from
exhaustion, refused to go farther, and he was forced to return home.
Vasco da Gama, ten years later (1497), following the route of Dias,
actually reached India and thus demonstrated that, instead of going
overland by caravan, India could be reached by sailing around
two-thirds of Africa.

Spanish and Portuguese navigators--Columbus, Da Gama, Dias--alike
sought a new and shorter route for trade with the Far East--one,
moreover, that would not be molested by the advancing and aggressive