About: http://webisa.webdatacommons.org/379883508

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	Later, during the Great Depression of the 1930s, a wave of regulations and new programs such as Social Security helped level the playing field, producing a 40-year period in which the gap between the rich and the poor remained stable.
http://www.w3.org/ns/prov#wasQuotedFrom	centralmaine.com