About: http://webisa.webdatacommons.org/65418035

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	The end of political Reconstruction in 1877 and the rise of the Ku Klux Klan in the south compelled southern blacks to migrate north to cities such as St. Louis.
http://www.w3.org/ns/prov#wasQuotedFrom	stlouis-mo.gov