# Stone Age

> broad prehistoric period during which stone was widely used to make implements

**Wikidata**: [Q11759](https://www.wikidata.org/wiki/Q11759)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Stone_Age)  
**Source**: https://4ort.xyz/entity/stone-age


## References

1. Three-age system
2. Freebase Data Dumps. 2013
3. BBC Things
4. YSO-Wikidata mapping project
5. BabelNet
6. National Library of Israel
7. KBpedia
8. [OpenAlex](https://docs.openalex.org/download-snapshot/snapshot-data-format)