# Old Style and New Style dates

> changes in calendar conventions from Julian to Gregorian dates

**Wikidata**: [Q1922815](https://www.wikidata.org/wiki/Q1922815)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Old_Style_and_New_Style_dates)  
**Source**: https://4ort.xyz/entity/old-style-and-new-style-dates


## References

1. Freebase Data Dumps. 2013