The Vindolanda Calendrical Clepsydra: Time-Keeping and Healing Waters

Abstract An unusual copper-alloy fragment was recovered during excavations at Vindolanda in 2008. It has been identified as part of a calendar or water clock. A very similar fragment was found near Hambledon in Hampshire in 2017. Further investigation of the Vindolanda and Hambledon fragments and of similar objects from Frankfurt, Salzburg and Grand reveals that the Vindolanda and Hambledon fragments were once attached to clepsydrae to form time-keeping devices that are unattested in ancient sources, but that might be called ‘calendrical clepsydrae’. 1 The links between similar artefacts and deities associated with water and healing are explored and evidence for a shrine located near sulphur springs in the Allen Valley is also discussed. The Vindolanda calendrical clepsydra is placed within this social and religious context.