# trifunctional hypothesis

> hypothesis that Proto-Indo-European society had 3 castes—priests, warriors, commoners—corresponding to the 3 functions of the sacral, the martial and the economic

**Wikidata**: [Q1398895](https://www.wikidata.org/wiki/Q1398895)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Trifunctional_hypothesis)  
**Source**: https://4ort.xyz/entity/trifunctional-hypothesis


## References

1. Freebase Data Dumps. 2013