. >>> next week on history bookshelf, nelson lankford discusses his book, "richmond burning," the last days of the confederate capital. he says the fire was intentionally ignited before the union soldiers arrived and allowed to burn freely. history bookshelf airs on american history tv every saturday at noon eastern. >>> there's a new website for american history t, where you can find our schedules and preview our upcoming programs, watch featured video from our regular weekly series, as well as access history tweets. history in the news, and social media from facebook, youtube, twitter and foursquare. follow american history tv all weekend, every weekend, on c-span 3 and online at c-span.org/history. >>> last year, the mcconnell center at the university of louisville held a conference on henry clay and leadership in the u.s. senate. at the conference, u.s. senate historian donald richie, spoke about clay and the foundation of the senate. this is 40 minutes. >>> thank you. and good morning. i'm glad to be here. and i'm glad that there are so many secondary school teachers in the audien