For more than two centuries, historians have debated one of the most controversial questions surrounding Thomas Jefferson: Did the third president of the United States father children with Sally Hemings, an enslaved woman at Monticello? Now, researchers involved in a long-running Smithsonian investigation say they have found what they describe as the most definitive scientific answer yet. A new genomic investigation, detailed by Smithsonian scholar Richard Kurin in his forthcoming book History by a Hair, reportedly used DNA recovered from...Click for full post