In A.D. 95, 1900 years ago, St John the Theologian, at the time in exile on Patmos island, wrote the Book of the Apocalypse, which is the last one of the New Testament. This God-inspired book is distinguished for its wealth of ideas and notions which, besides the theologic-philosophic-philologic influence that it has excercised on Christian spirit, has also deeply affected Christian art: serving as a literary source, it has inspired an entire iconographic cycle -with the representation of the Last Judgement as its focus- both in the West (the earlier example being Sta Pudenziana in Rome, of the 4th century) and in the East as it is ascertained by a relevant representation, again of the 4th century in Syria.