<prompt> Translate the following text to EnglishJoao Gonçalves Zarco, aliyekuwa akisafiri kwa meli kwa ajili ya Prince Henry, alifanya uvumbuzi wa kwanza kati ya uvumbuzi mwingi maarufu wa Wareno, ambao ulifikia upeo karne moja baadaye katika safari ya kihistoria ya Magellan kuzunguka dunia.  <response>: Joao Goncalves Zarco, sailing in the service of Prince Henry, made the first of many famous Portuguese discoveries, which would culminate a century later in Magellans historic circumnavigation of the globe. 