Henry The Navigator - Early Results of Henry's Explorers

Early Results of Henry's Explorers

Until Henry's time, Cape Bojador remained the most southerly point known to Europeans on the unpromising desert coast of Africa, although the Periplus of the Carthaginian Hanno the Navigator described a journey farther south about 2,000 years earlier.

As a second fruit of this work João Gonçalves Zarco, Bartolomeu Perestrelo and Tristão Vaz Teixeira rediscovered the Madeira Islands in 1420, and at Henry's instigation Portuguese settlers colonized the islands.

In 1427, one of Henry's navigators, probably Gonçalo Velho, discovered the Azores. Portugal soon colonized these islands in 1430.

Gil Eanes, the commander of one of Henry's expeditions, became the first European known to pass Cape Bojador in 1434. This was a breakthrough as it was considered close to the end of the world, with difficult currents that did not encourage commercial enterprise.

Henry also continued his involvement in events closer to home. In 1431 he donated houses for the Estudo Geral to reunite all the sciences — grammar, logic, rhetoric, arithmetic, music and astronomy — into what would later become the University of Lisbon. For other subjects like medicine or philosophy, he ordered that each room should be decorated according to each subject that was being taught.

He functioned as a primary organizer of the Portuguese expedition to Tangier in 1437. This proved a disastrous failure; Henry's younger brother Ferdinand was given as a hostage to guarantee that the Portuguese would fulfill the terms of the peace agreement that had been made with Çala Ben Çala. The Archbishop of Braga and the count of Arraiolos refused to approve the terms in the reunion of the Portuguese Cortes, thus condemning Ferdinand to remain in miserable captivity until his death six years later. Henry for most of his last twenty-three years concentrated on his exploration activities, or on Portuguese court politics.

Using the new ship type, the expeditions then pushed onwards. Nuno Tristão and Antão Gonçalves reached Cape Blanco in 1441. The Portuguese sighted the Bay of Arguin in 1443 and built an important fort there around the year 1448. Dinis Dias soon came across the Senegal River and rounded the peninsula of Cap-Vert in 1444. By this stage the explorers had passed the southern boundary of the desert, and from then on Henry had one of his wishes fulfilled: the Portuguese had circumvented the Muslim land-based trade routes across the western Sahara Desert, and slaves and gold began arriving in Portugal. By 1452, the influx of gold permitted the minting of Portugal's first gold cruzado coins. A cruzado was equal to 400 reis at the time. From 1444 to 1446, as many as forty vessels sailed from Lagos on Henry's behalf, and the first private mercantile expeditions began.

Alvise Cadamosto explored the Atlantic coast of Africa and discovered several islands of the Cape Verde archipelago between 1455 and 1456. In his first voyage, which started on 22 March 1455, he visited the Madeira Islands and the Canary Islands. On the second voyage, in 1456, Cadamosto became the first European to reach the Cape Verde Islands. António Noli later claimed the credit. By 1462, the Portuguese had explored the coast of Africa as far as the present-day nation Sierra Leone. Twenty-eight years later, Bartolomeu Dias proved that Africa could be circumnavigated when he reached the southern tip of the continent, now known as the "Cape of Good Hope." In 1498, Vasco da Gama was the first sailor to travel from Portugal to India.