# proleptic Julian calendar

> extension of the regular Julian calendar

**Wikidata**: [Q1985786](https://www.wikidata.org/wiki/Q1985786)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Proleptic_Julian_calendar)  
**Source**: https://4ort.xyz/entity/proleptic-julian-calendar


## References

1. Freebase Data Dumps. 2013