# Runic calendar

> perpetual calendar based on the 19 year long Metonic cycle of the Moon

**Wikidata**: [Q947787](https://www.wikidata.org/wiki/Q947787)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Runic_calendar)  
**Source**: https://4ort.xyz/entity/runic-calendar


## References

1. Freebase Data Dumps. 2013
2. BabelNet
3. Quora