About: http://webisa.webdatacommons.org/321460571

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	It includes speeches and writings from key figures such as Martin Luther King, Booker T. Washington, Sojourner Truth and W.E.B. Du Bois.
http://www.w3.org/ns/prov#wasQuotedFrom	history.ac.uk