On the 8th of March, 1500, a fleet of thirteen ships and caravels departed from Lisbon under the command of Pedro Alvares Cabral. Two of the caravels were destined for East Africa and the others for Calicut, on the Malabar coast of India, where they were sent to obtain cargoes of spices and other Eastern commodities, to establish friendly relations with its ruler, and to leave a factory for future trade. Vasco da Gama with his fleet had preceded; Cabral followed to reap the reward. The route was carefully selected to secure the safest and best passage to the Cape of Good Hope. The ships of the fleet were clumsy so that the course must be taken with the most favorable winds. They sailed somewhat to the west of south from the Cape Verde Islands and the coast of Brazil was reached, probably for the first time. After remaining here for about a week taking on supplies of water and wood, the main fleet continued to India. Before doing so, possession of this discovery was taken for the Crown, though it was not then known whether it was mainland or an island. A small supply ship was sent back to Lisbon carrying letters for the King, among them one by Pedro Vaz de Caminha telling of the sojourn and describing the natives, and another by the king’s astrologer, Master John. Both of these letters still exist. The date of the arrival of the supply ship in Portugal is not known but it was probably early in July, 1500. The news of the discovery was of great interest to the King and to the Portuguese people, but their chief concern was with the success of the India fleet, and Caminha’s letter reported that little of value was found in the new land during Cabral’s stay. The discovery made by Cabral was considered of sufficient importance, however, to warrant sending a second fleet for further investigation. The King and the cosmographers wished to know whether it was mainland, as they undoubtedly suspected, and if so its extent. If such were the case, they desired to claim the land for Portugal under the Bull of May 4, 1493 and the Treaty of Tordesillas, signed June 4, 1494. If it were an island, the Spice Islands farther to the west might be reached as Columbus had claimed. The merchants were interested in its commercial value particularly for obtaining pearls and dye wood and in its possibilities for the cultivation of sugar cane. In the latter of these Bartolomeo Marchioni, a wealthy Florentine, who had long resided in Lisbon and operated sugar plantations in Madeira and elsewhere, could anticipate profits, if the land were fertile and native labor adequate. The New Christians or converted Jews evidently also saw in this new land the possibility of escape from persecution in Portugal and a chance for wealth from the products which might be found there.
Projected future daily characteristics of African precipitation based on global (CMIP5, CMIP6) and regional (CORDEX, CORDEX-CORE) climate models
