On the Origin of Species Is Published

On 24 November 1859, John Murray published Charles Darwin's On the Origin of Species. Orders at the booksellers’ sale two days earlier exceeded the first printing; evolution by natural selection went on to reshape biology.

Darwin had been developing his explanation of the natural world for many years. At his home in Down, Kent, he was working on a much larger account when events pushed him toward a shorter book. In 1858, Alfred Russel Wallace sent him an essay describing a similar explanation of how species could change. The letter made the timing of publication suddenly important.

Material by Darwin and Wallace was presented jointly to the Linnean Society in July 1858. Darwin then prepared the work that became On the Origin of Species. The book set out an argument supported by observations of living organisms, variation and the conditions in which plants and animals survived and reproduced.

The title identified natural selection as the central mechanism being proposed. Rather than treating each species as permanently fixed, Darwin argued for change across generations and relationships among forms of life. Readers encountered an extended explanation, not simply an announcement of a new idea. The publication date was 24 November 1859; a booksellers' sale two days earlier helps explain why 22 November sometimes appears in accounts of the first edition's early history.