The international ANR-DFG-project Hludowicus-Projekt (Stefan Esders/Berlin, Philippe Depreux/Limoges) analysed different aspects of the political and social crisis in the epoch of Emperor Louis the Pious. Richard Corradini focused on an ensemble of manuscripts from St Gall and the Reichenau that contains methods of time reckoning, such as chronicles, calendars, Easter tables etc.