Maurice Halbwachs was a French philosopher and sociologist known for developing the concept of collective memory. Halbwachs also contributed to the sociology of knowledge with his La Topographie Legendaire des Évangiles en Terre Sainte; study of the spatial infrastructure of the New Testament. (1951)

Reims is the most populous city in the French department of Marne, and the 12th most populous city in France. The city lies 129 km (80 mi) northeast of Paris on the Vesle river, a tributary of the Aisne.