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14 July 2009
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Vasco da Gama

By Shane Winser
Rivalries

A 16th-century Portuguese ship
A 16th-century Portuguese ship used in the Indian Ocean trade routes ©
The rivalry between Portugal and Spain for the control of trade with the Orient intensified. The Pope stepped in to arbitrate and in 1494, after year-long negotiations, the Treaty of Tordesillas was signed. This in effect drew an imaginary north-south dividing line through the Atlantic, some 1,770km (1,100 miles) west of Cape Verde, giving all the newly discovered lands to the west of the line to Spain and everything to the east of the line to Portugal. King John was delighted. The treaty meant that Portugal retained its control of the west African coastal trade and of the possible sea route to India.

'In 1497 King John's successor, Manuel I, appointed Vasco da Gama to lead a pioneering voyage to India.'

In 1497 King John's successor, Manuel I, appointed Vasco da Gama to lead a pioneering voyage to India. Vasco da Gama was born in Sines, a small port in southern Portugal, in 1460 - the same year that Henry the Navigator died. His mother was of English ancestry. His father, Estevao da Gama, was head of one of Portugal's most noble families, had a distinguished military history, and was the provincial governor. When Vasco grew up he joined the navy, where he learned navigational skills and served with distinction in the war against Castille.

Bartholomew Diaz personally supervised preparations for da Gama's voyage. The ordinary caravel used by Diaz was not considered sufficient - it was not robust enough, and had insufficient cargo capacity. The crew would also need better protection for the long journey ahead.

The fleet consisted of four ships, two of which had been specially constructed. These were naos: square-rigged ships of shallow draught weighing about 200 tons. The flagship, St Gabriel, was captained by Vasco da Gama, and the St Raphael was under the command of his brother Paolo da Gama. Berrio Nicolau Coelho commanded a lanteen-rigged caravel of about 100 tons, and the fourth ship was a store ship.

The crew of 170 included three experienced pilots: Pedro de Alemquer, the pilot who had sailed with Diaz in 1487, Joao de Coimbra and Pero de Escolar.

Published: 2002-09-04

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