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This month marks the 200th anniversary of the birth of an English biologist, naturalist and explorer who helped develop the theory of evolution in the middle of the 19th century. No, we\u2019re not talking about Charles Darwin, but rather his contemporary Alfred Russel Wallace.\n\nJoining us to talk about Wallace\u2019s life, his blue plaque and the role he played in the development of evolutionary theory, is Senior Historian for the blue plaques scheme, Howard Spencer, and Head Gardener at Home of Charles Darwin \u2013 Down House, Antony O\u2019Rourke.\n\nTo learn more about our blue plaques scheme, go to www.english-heritage.org.uk/blue-plaques To plan a visit to Down House, go to www.english-heritage.org.uk/downhouse\nLearn more about your ad choices. Visit megaphone.fm/adchoices