OMAR the successor of Abu Bakr and according to caliph of the Muslims; was said al-Faruq (the prudent one). He reigned from the 634 to the 644. In the year 638 Jerusalem the doors opened it and; second the tradition; he would have erected; on the area of the ancient temple of Salomone; a mosque that remains one up to the present of more celebrates monuments than muslim architecture. Cromolitografia; Liebig little figure "Large conquering 1?; Italy 1903.