high place in the foreign commerce of the Christian states. So               
prominent was the Jewish role that those countries which excluded them       
lost, and those that received them gained, in the volume of their            
international trade. This was one- not the main- reason why Spain            
and Portugal declined while Holland rose, and why Antwerp yielded            
commercial leadership to Amsterdam.                                          
  It was a saving consolation that the Jews, in their internal               
affairs, could be ruled by their own laws and customs, their own             
rabbis and synagogue councils. As in Islam, so in Jewry, religion,                     
law, and morality were inextricably one; religion was held to be                         
coextensive with life. In 1310 Rabbi Jakob ben Asher formulated Jewish       
law, ritual, and morality in  Arabaah Turim  ( Four Rows ); this             
replaced the  Mishna Torah  (1170) of Maimonides with a code in              
which all the legislation of the Talmud and the rulings of the               
Geonim were made obligatory on all Jews everywhere. The  Turim  became       
the accepted guide for rabbinical law and judgment till 1565.                
    The disasters of the fourteenth and fifteenth centuries disrupted          
the social organization of the Jews. The rabbis, like the priests,           
suffered a high mortality in the Black Death. Persecutions,                  
expulsions, and a fugitive life almost put an end to Jewish law. The         
Sephardic Jews found it difficult to accept the language and customs         
of the Jewish communities which offered to absorb them; they set up          
their own synagogues, kept their own Spanish or Portuguese speech; and       
in many cities there were separate congregations of Spanish,                 
Portuguese, Italian, Greek, or German Jews, each with its own rabbi,                 
customs, charities, and jealousies. `063276 In this crisis the               
Jewish family saved the Jewish people; the mutual devotion of                
parents and children, brothers and sisters, provided a haven of              
stability and security. These centuries of disorder in Jewish mores          
ended when Rabbi Joseph Karo issued from Safed his  Shulchan Aruch           
(Venice, 1564-65); in this  Table in Order  the religion, law, and           
customs of the Jews were once more codified. But as Karo based his                     
code chiefly on Spanish Judaism, the Hebrews of Germany and Poland           
felt that he had paid too little attention to their own traditions and       
interpretations of the Law; Rabbi Moses Isserles of Cracow added to          
the  Table in Order  his  Mapath ha-Shulchan  ( A Cloth for the              
Table,  1571), which formulated the Askenazi variations on Karo's