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A volvelle from a 14th century English manuscript is on display at the J. Paul Getty Museum. Source: The J. Paul Getty Museum/Getty

29 November, 2023 - 13:53 Mark Miller

The Volvelle: The Medieval Equivalent of a Smartphone App?

Did you know that the ancestor of smartphone apps can be traced back to the Middle Ages? The volvelle, a paper-based interactive device, had a multifaceted role during its historical use. It...