Fernand Magellan's expedition and the conquerors of the three oceans

Fernand Magellan's expedition accomplished the most difficult task in the history of geographical discoveries. By completing the first voyage around the world, Fernand Magellan proved in practice that the Earth is a globe. Magellan was faced with total uncertainty, while Vasco da Gama sailed to India on famous geographical sites. That is, sailing to the Cape of Good Hope was not a problem. Because it was discovered by Bartolomeu Diasz, the latitude coordinates where this geographical object was located were given to Vasco da Gama. From the Cape to the port of Malindi, there was no difficulty in crossing the sea route either. All along the coastal land were aborigines and Arab merchant ships sailed far south of Malindi. As we already know, the famous Arab pilot Ahmed ibn Majid accompanied the flotilla from that port to the Indian coast. So Magellan actually made a very difficult voyage in the history of geographic discovery.