# National History Day

> organization

**Wikidata**: [Q17070741](https://www.wikidata.org/wiki/Q17070741)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/National_History_Day)  
**Source**: https://4ort.xyz/entity/national-history-day


## References

1. GRID Release 2017-01-10
2. Virtual International Authority File
3. [Source](https://www.charitynavigator.org/ein/341262642)
4. [Source](https://nhd.org/en/)
5. Nonprofit Explorer
6. [Nonprofit Explorer](https://projects.propublica.org/nonprofits/organizations/341262642)
7. GRID Release 2015-12-14
8. GRID Release 2016-12-06
9. Quora
10. Aligned ISNI and Ringgold identifiers for institutions
11. [Source](https://www.charitynavigator.org/index.cfm?bay=search.summary&orgid=8786&oldpage)
12. YouTube API