# Robert Zamenhof
**Wikidata**: [Q63991724](https://www.wikidata.org/wiki/Q63991724)  
**Source**: https://4ort.xyz/entity/robert-zamenhof


## References

1. [Source](https://www.drsimplescience.com/personal-background.html)
2. [Source](https://collections.arolsen-archives.org/H/SIMS5/03020106/0039/164706228/001.jpg)