"Paradox of Liberty": an impressive Smithsonian exhibit, based on archaeology and oral histories at the site and deeply researched, about the history of the enslaved African Americans who lived at Monticello during Thomas Jefferson's lifetime and were owned by him.
This exhibit was produced by the National Museum of African American History and Culture, an entity that is awaiting construction of its own building on the Mall. In the meantime, they have produced this exhibit within the existing (1964) National Museum of American History.
This link takes you further into the story:
americanhistory.si.edu/exhibitions/exhibition.cfm?key=38&... 