Road station
Calagum
Chailli o. Coulommiers (Miller) · Chailly-en-Brie (Barrington)
Calagvm was a road junction in the Brie in France, probably at Chailly-en-Brie, though Coulommiers has also been suggested. Three roads met here, from Meaux, from Bibe and towards Riobe, but the map gives no distance at all for the road to Riobe. The name may originally have been Caliacum, which would explain how it became Chailly. Apart from the map, no ancient source names the place.