About: http://webisa.webdatacommons.org/417514822

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 United States, prior to the 1950s, projects weremanaged on an ad hoc basis using mostly Gantt Charts, and informal techniques and tools. .
http://www.w3.org/ns/prov#wasQuotedFrom	slideshare.net