c-span video library. he where history unfolds daily. >> you are watching american history tv, 48 hours of programming on american history all weekend on c-span3. follow us on twitter at c-span ourory, for information on schedule and to keep up on the latest history news. >> up next on the presidency, a great grandnephew of george washington talks about his book writing with george. describes the first presidents prowess exports ranging from horseback riding to bow hunting. residentsvernon posted this event. >> we are lucky to have a wonderful author and a journalist and historian and friend of the burning speaking to us. he is a writer who has spent the last 20 years in afghanistan and iraq and other nations. he is a washington ancestor. a descendent. you are not that old. fifth gre