Mark Steel presents a series of lectures about people who changed the course of history

Left wing satirist and stand-up comedian Mark Steel looks at some of the most important people in our history, from the ancients to those still with us today.

His lectures cover the likes of W. G. Grace, who Steel considers to be the first modern celebrity; Che Guevara, possibly the only revolutionary in history to also suffer from asthma; and Lord Byron, who once kept a pet bear at college.