sentences:  By some accounts although not all Kashan was the origin of the three wise men who followed the star that guided them to Bethlehem to witness the nativity of Jesus, as recounted in the Bible.Whatever the historical validity of this story, the attribution of Kashan as their original home testifies to the city's prestige at the time the story was set down.Abu-Lu'lu'ah/Pirouz Nahāvandi, the Persian soldier who was enslaved by the Islamic conquerors and eventually assassinated the caliph Umar al-Khattab in AH 23 (643/4 CE), reportedly fled to Kashan after the assassination and lived there some years before being finally caught and executed.