David's son Amnon forced his half-sister, Tamar, into incest.<span> After two years, Absalom, Tamar's full brother, killed Amnon.</span><span> Absalom fled to Geshur, and David refused to allow him to return for three years and refused to see him for two more years.</span><span> Joab was finally successful in his attempts to mediate between David and Absalom (2 Samuel 14:33).</span>
Marie Curie was the scientist whose private papers had to be decontaminated for two years in the 1990's before being put on file at the National Library in Paris. Marie Skłodowska Curie was a Polish and naturalized-French scientist and chemist who escorted pioneering analysis on radioactivity. She said that being a historian is not without its jeopardies.
