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date: 16 April 2021

Abstract and Keywords

Abstract and Key Words

German mapmaker Henricus Martellus created this copy of a Portuguese map to show the extent of Bartolomeu Dias’s explorations beyond the Cape of Good Hope in southern Africa in 1486-1488. In earlier Ptolemaic maps, Africa appears as either a quarter-circle or a block of landmass abruptly terminating at the Sahara. This remarkable map shows the rapid development of European knowledge of the west and south coasts of Africa during the fifteenth century. In contrast to earlier maps, Africa is shown as surrounded by water. The Indian Ocean—for centuries a Muslim-controlled “lake” inaccessible to European merchants– is now shown as penetrable by ocean-going vessels sailing around the Cape of Good Hope. In 1497 Vasco da Gama headed a successful expedition that did just that, returning to Portugal in 1499.

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