# Mason–Dixon Line

> surveyed border line between U.S. states of Delaware, Maryland, and Pennsylvania

**Wikidata**: [Q530472](https://www.wikidata.org/wiki/Q530472)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Mason–Dixon_line)  
**Source**: https://4ort.xyz/entity/mason-dixon-line


## References

1. Encyclopædia Britannica Online
2. Getty Thesaurus of Geographic Names
3. Geographic Names Information System
4. [Source](https://www.asce.org/projects/surveys-and-maps/mason-dixon-line/)
5. Virtual International Authority File
6. Library of Congress Subject Headings
7. Freebase Data Dumps. 2013
8. Czech National Authority Database
9. [Source](https://www.asce.org/about-civil-engineering/history-and-heritage/historic-landmarks/mason-dixon-line)
10. GeoNames
11. Faceted Application of Subject Terminology
12. BabelNet
13. [Source](http://id.loc.gov/authorities/classification/F157.B7)
14. Treccani's Enciclopedia on line
15. Quora
16. Open Library