This article uncovers the role of runestaves in vernacular science, revealing their significance for lunar cycles and cultural knowledge transmission.
Runestaves are perpetual calendars that were made and used in Sweden and surrounding areas from the turn of the first millennium until printed almanacs superseded them in the seventeenth or eighteenth century. They represent a sophisticated form of vernacular science—tools that enabled lay users to calculate lunar cycles, feast days, and even Easter, independent of clerical authority. As such, runestaves exemplify locally maintained systems of empirical observation, symbolic notation, and collective knowledge transmission. Alongside the first extensive reconstruction of regional and temporal variation, this article draws on a new database of over 800 transcriptions to uncover the cognitive and cultural mechanisms that enabled this popular, extra-institutional perpetuation of calendrical science.
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Dunn et al. (2025) studied this question.
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