This paper will explain the origins of popular piety and religious reform in medieval Europe before focusing in on two specific movements, the Patarenes and Henry of Lausanne, the first of which became an acceptable form of reform while the other remained a heretic.
In the Middle Ages, Polish Christian holidays remained consistent, except for minor temporary deviations. They included the basic structure of pre-Christian rituals. Yet, traces of the old Slavic ritual calendar can be clearly identified in the Polish and Czech sources from the fourteenth- and fifteenth-centuries.
Environmental archaeologist and Professor of Archeology at Reading, Dr. Aleks Pluskowski, examined Malbork and several other sites across Eastern and Northern Europe in his recent paper, The Ecology of Crusading: The Environmental Impact of Holy War, Colonisation, and Religious Conversion in the Medieval Baltic. Pluskowski is keenly interested in the impact the Teutonic Knights and Christian colonisation had on the region. His ambitious 4 year project on the ecological changes in this area recently came to a close at the end of 2014.