A Runic calendar (also Rune staff or Runic Almanac) is a perpetual calendar based on the 19-year-long Metonic cycle of the Moon. Runic calendars were written on parchment or carved onto of wood, bone, or horn. The oldest one known, and the only one from the Middle Ages, is the Nyköping staff from Sweden, believed to date from the 13th century. Most of the several thousand which survive are wooden calendars dating from the 16th and the 17th centuries. During the 18th century, the Runic calendars had a renaissance, and around 1800, such calendars were made in the form of tobacco boxes in brass.

A Runic calendar (also Rune staff or Runic Almanac) is a perpetual calendar based on the 19-year-long Metonic cycle of the Moon. Runic calendars were written on parchment or carved onto of wood, bone, or horn. The oldest one known, and the only one from the Middle Ages, is the Nyköping staff from Sweden, believed to date from the 13th century. Most of the several thousand which survive are wooden calendars dating from the 16th and the 17th centuries. During the 18th century, the Runic calendars had a renaissance, and around 1800, such calendars were made in the form of tobacco boxes in brass.