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<http://webisa.webdatacommons.org/396462065>	<http://www.w3.org/ns/prov#value>	"Chapters explore key aspects of slavery, including a ???Chronicle of Events.??? A section entitled ???Eyewitness Testimony??? features interesting and historically significant comments made by such figures as Benjamin Franklin, Abraham Lincoln, Sojourner Truth, Harriet Tubman, Nat Turner, and many more." .