About: http://webisa.webdatacommons.org/438544754

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	By the 1860s, some unions, representing workers such as printers and carpenters, had achieved a measure of permanence and stability.
http://www.w3.org/ns/prov#wasQuotedFrom	sfsu.edu