PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • He is the author of numerous books and articles including Slavery and the Founders: Race and Liberty in the Age of Jefferson (1996), Dred Scott v. Sandford: A Brief History (1997), and An Imperfect Union: Slavery, Federalism, and Comity (reprint ed., 2000).
http://www.w3.org/ns/prov#wasQuotedFrom
  • archives.gov