About: http://webisa.webdatacommons.org/43014908

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	As early as 1848 in the Communist Manifesto Marx and Engels said: ???Of all that classes that stand face to face with the bourgeoisie today, the proletariat alone is a really revolutionary class???.
http://www.w3.org/ns/prov#wasQuotedFrom	marxists.org