# Campus Martius

> public proving ground in ancient Rome and the district of ancient, medieval, and modern Rome built over it

**Wikidata**: [Q242839](https://www.wikidata.org/wiki/Q242839)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Campus_Martius)  
**Source**: https://4ort.xyz/entity/campus-martius


## References

1. Freebase Data Dumps. 2013
2. YSO-Wikidata mapping project