# blackboard

> reusable writing surface

**Wikidata**: [Q235585](https://www.wikidata.org/wiki/Q235585)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Blackboard)  
**Source**: https://4ort.xyz/entity/blackboard


## References

1. Google Product Taxonomy
2. Integrated Authority File
3. Freebase Data Dumps. 2013
4. Quora
5. National Library of Israel
6. KBpedia
7. GF WordNet