Columbus was not the only renowned discoverer of that time who was directly and indirectly assisted by Jews. The great and cruel Vasco da Gama, who did for Portugal almost as much as Columbus did for Spain, could hardly have carried out his important undertakings without the help of at least two Jews. One of them was the above-mentioned Abraham Zacuto, who, like many of his unfortunate brethren, went from Spain to Portugal after the calamity of 1492. He was highly favored by King João and by his successor, Dom Manuel, and the latter consulted him on the advisability of sending out under Vasco da Gama’s command the flotilla of four boats which was to reach India by the way of Cape of Good Hope. Zacuto pointed out the dangers which would have to be encountered, but gave it as his opinion that the plan was feasible and predicted that it would result in the subjection of a large part of India to the Portuguese crown. Zacuto’s works and the instruments which he invented and made available materially facilitated the execution of the enterprises of Vasco da Gama and other explorers. As in the case of Columbus and Spain, da Gama sailed in the year of the expulsion of the Jews from the country which fitted out his expedition (1497). When he returned Zacuto was an exile in Tunis, though he probably could have remained in Portugal, just as Abravanel could have remained in Spain. It was during his return voyage to Europe, while staying at the little island of Anchevide, sixty miles from Goa (off the Indian coast of Malabar) that Vasco da Gama met the second Jew who became very useful to him and to Portugal. A tall European with a long white beard approached his ship in a boat with a small crew. He had been sent by his master, Sabayo, the Moorish ruler of Goa, to negotiate with the foreign navigator. He was a Jew who, according to some chronicles, came from Posen, according to others from Granada, whose parents had emigrated to Turkey and Palestine. From Alexandria, which some give as his birthplace, he proceeded across the Red Sea to Mecca and thence to India. Here he was a long time in captivity, and later was made admiral (capitao mór) by Sabayo.