In 1864, Wallace published a paper, "The Origin of Human Races and the Antiquity of Man Deduced from the Theory of 'Natural Selection'", applying the theory to humankind.
Pada tahun 1864, Wallace menerbitkan sebuah makalah berjudul "The Origin of Human Races and the Antiquity of Man Deduced from the Theory of 'Natural Selection'" terkait penerapan teori ini pada manusia.