About: http://webisa.webdatacommons.org/28479503

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	Prior to 1940, therefore, migration had mostly been internal to Mexico, but the Bracero Program helped start the large waves of external migration from the Mixtec Region that flowed into the United States in the decades afterward.
http://www.w3.org/ns/prov#wasQuotedFrom	issuu.com