in 1066. Several decrees ordering the destruction of synagogues were also enacted in Egypt, Syria, Iraq and Yemen from the 11th century. In addition, Jews were forced to convert to Islam or face death in some parts of Yemen, Morocco and Baghdad several times between the 12th and 18th centuries. The Almohads, who had taken control of the Almoravids' Maghribi and Andalusian territories by 1147, were far more fundamentalist in outlook compared to their predecessors, and they treated the dhimmis harshly. Faced with the choice of either death or conversion, many Jews and Christians emigrated. Some, such as the family of Maimonides, fled east to more tolerant Muslim lands, while some others went northward to settle in the growing Christian kingdoms. In medieval Europe, Jews were persecuted with blood libels, expulsions, forced conversions and massacres. These persecutions were often justified on religious grounds and reached a first peak during the Crusades. In 1096, hundreds or thousands of Jews were killed during the First Crusade. This was the first major outbreak of anti-Jewish violence in Christian Europe outside Spain and was cited by Zionists in the 19th century as indicating the need for a state of Israel. In 1147, there were several massacres of Jews during the Second Crusade. The Shepherds' Crusades of 1251 and 1320 both involved attacks, as did the Rintfleisch massacres in 1298. Expulsions followed, such as the 1290 banishment of Jews from England, the expulsion of 100,000 Jews from France in 1394, and the 1421 expulsion of thousands of Jews from Austria. Many of the expelled Jews fled to Poland. In medieval and Renaissance Europe, a major contributor to the deepening of antisemitic sentiment and legal action among the Christian populations was the popular preaching of the zealous reform religious orders, the Franciscans (especially Bernardino of Feltre) and Dominicans (especially Vincent Ferrer), who combed Europe and promoted antisemitism through their often fiery, emotional appeals. As the Black Death epidemics devastated Europe in the mid-14th century, causing the death of a large part of the population, Jews were used as scapegoats. Rumors spread that they caused the disease by deliberately poisoning wells. Hundreds of Jewish communities were destroyed in numerous persecutions. Although Pope Clement VI tried to protect them by issuing two papal bulls in 1348, the first on 6 July and an additional one several months later, 900 Jews were burned alive in Strasbourg, where the plague