Heaven and Earth in the Middle Ages

Christopher Columbus and his achievement; The earth as the protected centre of a finite unvierse and the earth as the Yolk in the cosmic egg; The shape of the earth; The fascination of the world down under: the fourht contienent and the antipodes; To the end of the earth; The journey of the centre of the earth: Jerusalem as the hub of the world; The fruits of original sin: monstrous races on the edges of the world known to man; God´s mysterious ways or the hidden powers of nature; A new continent, a new earth, a new world, form Columbus to Galileo