Evan Solomon reflects on the legacy of the former Soviet leader who brought the Cold War to a peaceful end.

On today's show: 

• Jeremy Kinsman, former Canadian Ambassador in Moscow, and Bob Rae, Canada’s ambassador to the United Nations, on the passing of Mikhail Gorbachev.
• Bill Kuhn, biographer and historian specializing in the Royal Family, on the 25th anniversary of Princess Diana’s death.
• The War Room political panel with Susan Smith, Tom Mulcair and Tim Powers.
• Lisa Cormier, a school teacher in P.E.I, who discovered what could be a 300-million-year-old fossil. She is joined by geologist and paleontologist Dr. John Calder, who was at the dig.