Prince Henry the Navigator's Life By cambriaa1 Mar 4, 1394 Prince Henry the Navigator was born in Potagual Period: Mar 4, 1394 to Nov 13, 1460 Prince Henry the Navigator's life Dec 15, 1418 He started his own navigation school The children learned science, to make maps,and navigate. Dec 15, 1434 He sponsored his exploration Dec 25, 1434 Primce Henry the Navigator's men sailed Mar 18, 1435 Prince Henry sailed the West Cost of Africa and the different sea routes to the Indies.