Module 4 First Voyage Around the World.pptx - The First Voyage Around the World Antonio Pigafetta Image captured from The Filipino Heritage Alfredo

Module 4 First Voyage Around the World.pptx - The First...

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The First Voyage Around the World Antonio Pigafetta Image captured from The Filipino Heritage , Alfredo Roces Ed.
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1415 – Prince Henry, the navigator, Portuguese ships captured Ceuta, freed Christian slaves and found gold was not coming from Arab-India route but across Sahara. 1420- Captured Mediera Island 1432 – Azores 1434 – Cape Bojador 1445 – Cape Verde 1456 – Cape Verde Island 1462 – Sierra Leone 1471 – Gold Coast 1474 – SaoTome Island 1484 – Christopher Columbus submitted a proposal to King John II of Portugal, claiming he could reach India (4,000 km) via west. His advisers knew it was 16,000 km away. Image:
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Paolo del Pozzo Toscanelli’s (Florentine physician) map Columbus argued: The circumference of the earth is 30,200 km. The distance between Canary Islands and Japan was 3,000 Italian miles (3,700 km or 2,300 statute miles. Whereas s Eratosthenes measured it at 5,040 stadia or 39,620 km. The actual measure is 40,000 km. Whereas the correct distance is 19,600 km or 12,200 miles. King John’s adviser knew it was 16,000 km. King John rejected his plan. Image:
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Columbus’s map 1490 In 1488 he sought another audience with King John but Bartolomeu Diaz had rounded the Cape of Good Hope. The more that King John was not persuaded of his plan . In 1486 he went to Spain to propose his plan to King Ferdinand and Queen Isabel la which she referred to a committee of savants but they said he overestimated his calculations. Image:
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1415 – Prince the navigator, Portuguese ships captured Ceuta, freed Christian slaves and found gold was not coming from Arab-India route but across Sahara.
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