# Sumer

> ancient Mesopotamian civilization from 5500 to 1800 BC

**Wikidata**: [Q35355](https://www.wikidata.org/wiki/Q35355)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Sumer)  
**Source**: https://4ort.xyz/entity/sumer


## References

1. [Art & Architecture Thesaurus](http://vocab.getty.edu/page/aat/300019726)
2. [Source](https://lingualibre.fr/wiki/Q212993)
3. Freebase Data Dumps. 2013
4. Czech National Authority Database
5. Quora
6. National Library of Israel Names and Subjects Authority File