Historical Archive of the City of Cologne included copies of the protocols of the diets of the Hanseatic League. With the 1594 transfer, the Cologne archive became the most important repository of historical material concerning the Hanseatic League and thus concerning the history of Northern Germany in general, only matched by the municipal archives of Lübeck. On 27 February 1602, the city council ordered that books on jurisdiction and administration were to be systematically bought at the regularly held Frankfurt Book Fair. These were subsequently stored in the municipal archive and became the basis of the Cologne municipal library. The "Ratsbibliothek" was one of the few Cologne
History of the Jews in Cologne The persecution of the Jewish community at the time of the Black Death became the fiercest in the whole of the Middle Ages.In 1340 a terrible pestilence arrived in Europe. The Black Death had not reached Cologne until December 1349 However, reports of its devastating impact arrived on the Rhine from the south considerably earlier. Ultimately, between 30-60% of the European population died from the epidimic, provoking fears of an apocalyptic nature. Accusations that the plague was caused by a conspiracy of the Jews to poison the wells (accusations that were not proven in even a single case) apparently had