# Berlin Wall

> barrier constructed by the German Democratic Republic, enclosing West Berlin (1961–1989)

**Wikidata**: [Q5086](https://www.wikidata.org/wiki/Q5086)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Berlin_Wall)  
**Source**: https://4ort.xyz/entity/berlin-wall


## References

1. Virtual International Authority File
2. Library of Congress Control Number
3. RAMEAU
4. Freebase Data Dumps. 2013
5. BBC Things
6. [Source](https://www.berlin.de/landesdenkmalamt/denkmale/berliner-mauer/aufbau-und-entwicklung/)
7. [Source](https://www.chronik-der-mauer.de/183817/faq)
8. YSO-Wikidata mapping project
9. BabelNet
10. Quora
11. FactGrid
12. National Library of Israel Names and Subjects Authority File
13. KBpedia
14. museum-digital
15. [OpenAlex](https://docs.openalex.org/download-snapshot/snapshot-data-format)