About: http://webisa.webdatacommons.org/410127429

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	In the final quarter of the nineteenth century, about 100,000 blacks left North Carolina, and between 1910 and 1950 about 280,000 blacks moved to cities such as as Washington, D.C., New York, and Detroit.
http://www.w3.org/ns/prov#wasQuotedFrom	ncpedia.org