Beginning with the middle of the sixteenth century these conferences met at the time of the great fairs, when large numbers of people congregated from various places, and litigants arrived in connection with their business affairs. The chief meeting-place was the Lublin fair, owing to the fact that Lublin was the residence of the father of Polish rabbinism, the above-mentioned Rabbi Shalom Shakhna, who was officially recognized as the "senior rabbi" of Little Poland. As far back as in the reign of Sigismund I. the "Jewish doctors," or rabbis, met there for the purpose of settling civil disputes "according to their law." In the latter part of the sixteenth century these conferences of rabbis and communal leaders, assembling in connection with the Lublin fairs, became more frequent, and led in a short time to the organization of regular, periodic conventions, which were attended by representatives from the principal Jewish communities of the whole of Poland.
The activity of these conferences, or conventions, passed, by gradual expansion, from the judicial sphere into that of administration and legislation. At these conventions laws were adopted determining the order of Kahal elections, fixing the competency of the rabbis and judges, granting permits for publishing books, and so forth. Occasionally these assemblies of Jewish notables endorsed by their authority the enactments of the Polish Government. Thus, in 1580, the representatives of the Polish-Jewish communities, who assembled in Lublin, gave their solemn sanction to the well-known Polish law barring the Jews of the Crown, of Poland proper, from farming state taxes and other public revenues, in view of the fact that "certain people, thirsting for gain and wealth, to be obtained from extensive leases, might thereby expose the community to great danger."
Towards the end of the sixteenth century the fair conferences received a firmer organization. They were attended by the rabbis and Kahal representatives of the following provinces: Great Poland (the leading community being that of Posen), Little Poland (Cracow and Lublin), Red Russia (Lemberg), Volhynia (Ostrog and Kremenetz), and Lithuania (Brest and Grodno). Originally the name of the assembly varied with the number of provinces represented in it, and it was designated as the Council of the Three, or the Four, or the Five, Lands. Subsequently, when Lithuania withdrew from the Polish Kahal organization, establishing a federation of its own, and the four provinces of the Crown[69] began to send their delegates regularly to these conferences, the name of the assembly was ultimately fixed as "the Council of the Four Lands" (Waad Arba Aratzoth).
The "Council" was made up of several leading rabbis of Poland,[70] and of one delegate for each of the principal Kahals selected from among their elders—the number of the conferees altogether amounting to about thirty. They met periodically, once or twice a year, in Lublin and Yaroslav (Galicia) alternately. As a rule, the Council assembled in Lublin in early spring, between Purim and Passover, and in Yaroslav at the end of the summer, before the high holidays.
The representatives of the Four Lands—says a well-known annalist of the first half of the seventeenth century[71]—reminded one of the Sanhedrin, which in ancient days assembled in the Chamber of Hewn Stones (lishkath ha-gazith) of the temple. They dispensed justice to all the Jews of the Polish realm, issued preventive measures and obligatory enactments (takkanoth), and imposed penalties as they saw fit. All the difficult cases were brought before their court. To facilitate matters the delegates of the Four Lands appointed dayyane medinoth) to settle disputes concerning property, while they themselves [in plenary session] examined criminal cases, matters appertaining to hazaka (priority of possession) and other difficult points of law.
The Council of the Four Lands was the guardian of Jewish civil interests in Poland. It sent its shtadlans[72] to the residential city of Warsaw[73] and other meeting-places of the Polish Diets for the purpose of securing from the king and his dignitaries the ratification of the ancient Jewish privileges, which had been violated by the local authorities, or of forestalling contemplated restrictive laws and increased fiscal burdens for the Jewish population.
But the main energy of the Waad was directed towards the regulation of the inner life of the Jews. The statute of 1607, framed, at the instance of the Waad, by Joshua Falk Cohen, Rabbi of Lublin, is typical of this solicitude. The following rules are prescribed for the purpose of fostering piety and commercial integrity among the Jewish people: to pay special attention to the observance of the dietary laws, to refrain from adopting the Christian form of dress; not to drink wine with Christians in the pot-houses, in order not to be classed among the disreputable members of the community; to watch over the chastity of Jewish women, particularly in the villages where the Jewish arendars[74] with their families were isolated in the midst of the Christian population. In the same statute rules are also laid down tending to restrain the activities of Jewish usurers and to regulate money credit in general.