Jerusalem was one of the most important places during the Crusades. It was known as the Holy Land. People preferred this city as the Holy Land because it was where Jesus had lived and taught. Also, it is an important place to the Muslims because it is where Muhammad ascended into heaven. Jerusalem is signifigant to the Jews because it has been the Jewish capital since B. C. 1500. The kingdom of Jerusalem was found by Godfrey of Bouillon. Godfrey was also the first ruler of Jerusalem, then Saladin takes over.