Nicolaus Rohlfs
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In 18th century, the German Arithmeticus (mathematics teacher) Nicolaus Rohlfs wrote astronomical calendars, a book about gardening and other treatises that were continued by Matthias Rohlfs.
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In 18th century, the German Arithmeticus (mathematics teacher) Nicolaus Rohlfs wrote astronomical calendars, a book about gardening and other treatises that were continued by Matthias Rohlfs.
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