Historical Archive of the City of Cologne up at the site of the collapse (a large hole in the ground), where around 95% of all archival items could be held until August 2011, albeit scattered and in many cases badly damaged. Archive repositories all over Germany offered space to store the damaged and only roughly cleaned documents: wet materials were flash-frozen to prevent mold growth. "Itinerant archivists" worked in the receiving archives all over the country and began the task of re-identifying and re-cataloging. A newly installed centre for restoration and digitization on the outskirts of Cologne started working in 2011, with a total cost for restoring
History of the Jews in Cologne offices, and the Roman administration went into crisis and the emperor had to look for alternatives. It became necessary for the Cologne Council to use a decree of Emperor Constantine the Great of 321, which permitted Jews to be appointed to the "curia". This is the first evidence of the existence of a Jewish community in the town of Cologne. The emperor's decree was passed down in the "Codex Theodosianus" (439), which indicates the existence of a firmly established Jewish community in Cologne in 321 and 331. A partial translation of the "Codex" reads: "We allow all town councils to