PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Cotton exports from the U.S. boomed after the cotton gin's appearance - from less than 500,000 pounds in 1793 to 93 million pounds by 1810. [10] Cotton was a staple that could be stored for long periods and shipped long distances, unlike most agricultural products.
http://www.w3.org/ns/prov#wasQuotedFrom
  • geni.com