 Other speakers during the year included John Prescott, Muhammad Yunus, and Tony Benn.The 2009 festival focused on three themes – Thirty years of Thatcherism; Darwin and Darwinism; and Arts and Science, fifty years after scientist C. P. Snow's influential lecture, "The Two Cultures".Events during the main Festival featured speakers Aravind Adiga, Tariq Modood, Peter Singer, James Lovelock, A. C. Grayling, Christopher Caldwell, John Gray, Richard Holmes, Paddy Ashdown, Nick Cohen, Wayne Hemingway, Susan Blackmore, Christopher Brookmyre, James Harkin, Tariq Ramadan, David Aaronovitch, Bruce Hood, Geoff Dyer, Tristram Hunt, Marcus du Sautoy, Ben Goldacre, Ruth Padel, Richard Fortey, and Gillian Beer.