On the origin of a theory.

The article looks at naturalist Alfred Russel Wallace, a partner to biologist Charles Darwin and co-author of the paper "On the Tendency of Species to Form Varieties," the first detailed explanation of evolution by natural selection. Focus is given to 2013 efforts by the Natural History Museum in London, England to publicize Wallace's contribution to the research. Topics include the Wallace Memorial Fund founded by scientist George Beccaloni and the 2013 100th anniversary of Wallace's death.