Columbia subject headings:
Harvard subject headings:
Astronomy, Arab--History.
Dias, Bartolomeu.
Discoveries in geography--Portuguese--Sources.
Ferreira Paes, Simão, active 1637-1650. Famozas armadas portuguesas.
Gama, Vasco da, 1469-1524.
Mathematics, Arab--History.
Portugal--History, Naval.
Portugal--History--Period of discoveries, 1385-1580--Sources.
Portuguese--India--History
Princeton subject headings:
Dias, Bartolomeu.
Explorers--Portugal--Biography.
Gama, Vasco da, 1469-1524.
Portugal--History, Naval.
Portugal--History--Period of discoveries, 1385-1580.
Portuguese--India--History.