# World Esperanto Congress 1907
**Wikidata**: [Q3686967](https://www.wikidata.org/wiki/Q3686967)  
**Source**: https://4ort.xyz/entity/world-esperanto-congress-1907


## References

1. Czech National Authority Database
2. Source
3. [Source](https://katalogo.uea.org/katalogo.php?inf=7360)