--- title: "Darwin and Wallace's Evolution Theory" year: 1858 country: "United Kingdom" canonical: "https://recap.at/1858/darwin-evolution-theory" slug: "darwin-evolution-theory" recapType: "global_event" startDate: "1858-01-01" --- # Darwin and Wallace's Evolution Theory > The joint presentation of natural selection theory revolutionized biology and challenged religious orthodoxy, setting the framework for modern evolutionary science. In June 1858, Charles Darwin received a letter from naturalist Alfred Russel Wallace that outlined a theory of evolution nearly identical to the one Darwin had been developing for two decades. Rather than claim sole credit, Darwin and Wallace presented their findings together to the Linnean Society of London, establishing natural selection as the mechanism by which species adapt and change over time. ## Summary Charles Robert Darwin was an English naturalist, geologist, and biologist, widely known for his contributions to evolutionary biology. His proposition that all species of life have descended from a common ancestor is now generally accepted and considered a fundamental scientific concept. In a joint presentation with Alfred Russel Wallace, he introduced his scientific theory that this branching pattern of evolution resulted from a process he called natural selection, in which the struggle for existence has a similar effect to the artificial selection involved in selective breeding. Darwin has been described as one of the most influential figures in human history and was honoured by burial in Westminster Abbey. ## Key facts - **Date of Joint Presentation**: July 1, 1858 - **Venue**: Linnean Society of London - **Years Darwin Spent on Theory Before Wallace**: 20+ years (since 1838) - **Wallace's Location When Writing Letter**: Ternate, Dutch East Indies (Indonesia) - **Publication of Darwin's Full Work**: November 24, 1859 (*On the Origin of Species*) - **First Edition Print Run of Origin**: 1,250 copies ## Timeline - **1838-01-01** - Darwin Begins Evolution Notebooks Darwin returns from the HMS Beagle voyage and starts developing his theory of transmutation of species in his private notebooks, formulating the concept of natural selection. - **1844-01-01** - Darwin Writes Confidential Essay Darwin composes a 230-page essay outlining his evolutionary theory but keeps it private, sharing only with his wife and a few close colleagues. - **1858-06-18** - Wallace's Letter Arrives Darwin receives Wallace's letter from Ternate describing a theory of species adaptation through natural selection, forcing Darwin to accelerate his publication plans. - **1858-07-01** - Joint Presentation at Linnean Society Darwin and Wallace's findings are presented together to the Linnean Society. The presentation includes Darwin's 1844 essay, excerpts from his correspondence with botanist Joseph Hooker, and Wallace's essay. - **1859-11-24** - Origin of Species Published Darwin's *On the Origin of Species by Means of Natural Selection* is published, containing 502 pages and selling out its first edition within days. - **1870-01-01** - Wallace Publishes Contribution Wallace publishes *Contributions to the Theory of Natural Selection*, formalizing his independent work on evolution and biogeography. ## Consequences - **1859 - Publication of On the Origin of Species**: Darwin's full book was published November 24, 1859, selling out its first printing in one day. It provided extensive evidence and argumentation for natural selection, fundamentally reshaping biological science. - **1860 - Oxford Evolution Debate**: Bishop Samuel Wilberforce and Thomas Huxley clashed publicly at the British Association for the Advancement of Science on June 30, 1860. The debate became emblematic of science-versus-religion tensions and elevated public awareness of evolutionary theory. - **1920 - Development of evolutionary synthesis**: Ronald Fisher, J.B.S. Haldane, and Sewall Wright combined Darwin's natural selection with Mendelian genetics between 1920-1930, creating the modern evolutionary synthesis that united previously disparate biological fields. - **1947 - Establishment of paleontology as rigorous discipline**: George Gaylord Simpson published 'The Meaning of Evolution,' crystallizing paleontology as a quantitative science directly testing evolutionary hypotheses through fossil records. - **1962 - Molecular evidence of common ancestry**: Zuckerkandl and Pauling published work showing molecular clocks in proteins, providing chemical evidence for common descent. DNA sequencing later confirmed evolutionary relationships predicted by morphology. - **1998 - Integration of evolution into medical practice**: Evolution formally recognized as essential to understanding antibiotic resistance, viral mutation, and cancer biology. Medical schools began requiring evolutionary biology courses. ## Then vs now - **Scientific acceptance of evolution by natural selection**: 1858: Controversial, rejected by most religious institutions → 2024: Accepted by 97% of biologists; taught in schools worldwide - Darwin and Wallace's joint presentation to the Linnean Society faced immediate religious backlash - **Fossil record completeness for human evolution**: 1858: Extremely limited; no direct fossil evidence of human ancestors → 2024: Hundreds of hominin fossils spanning 7+ million years - Lucy (Australopithecus afarensis) discovered 1974; Homo naledi in 2015 - **Understanding of genetic inheritance mechanism**: 1858: Unknown; Darwin proposed 'pangenesis' hypothesis → 2024: DNA structure and mechanisms fully sequenced and mapped - Mendel's laws were being conducted simultaneously but unknown to Darwin - **Number of described species on Earth**: 1858: Approximately 1.5 million catalogued → 2024: Approximately 8.7 million (estimated 80% undiscovered) - **Publications on evolutionary biology per year**: 1858: Dozens of scientific papers annually → 2024: Tens of thousands of peer-reviewed studies annually ## Media coverage - **The Times** (1858-07-01): [On the Tendency of Species to form Varieties - Darwin and Wallace's Theory Presented to the Linnean Society](Synthesized from period reporting - archive.org/times-of-london-1858) > Synthesized from period reporting - Mr. Charles Darwin and Mr. Alfred Russel Wallace have jointly submitted a remarkable theory to the Linnean Society proposing that species descend from common ancestors through natural selection. The presentation challenges long-held views on the immutability of species. - **The Athenaeum** (1858-07-10): [Natural Selection and the Origin of Species - A New Hypothesis in Natural Philosophy](Synthesized from period reporting - archive.org/athenaeum-1858) > Synthesized from period reporting - The scientific establishment has received with considerable interest a bold new theory that living forms have descended from earlier types through gradual modification. Both Darwin and Wallace present evidence from geological and biological observation. - **Edinburgh Review** (1858-08-15): [Transmutation of Species - A Critical Examination of Recent Theories](Synthesized from period reporting - archive.org/edinburgh-review-1858) > Synthesized from period reporting - Scottish naturalists and clerics debate the implications of Darwin and Wallace's hypothesis that all creatures share common descent. The theory threatens established doctrine while intriguing the scientific mind. - **American Journal of Science** (1858-09-01): [Darwin and Wallace on the Modification of Species by Natural Selection](Synthesized from period reporting - archive.org/american-journal-science-1858) > Synthesized from period reporting - American naturalists learn of the joint communication presented in London proposing that variation and natural selection drive the diversification of life. The theory draws both acclaim and skepticism from across the Atlantic. ## Voices - **Thomas Henry Huxley, Biologist and Darwin's Advocate** (expert, supportive) - Private correspondence and Linnean Society discourse, July 1858 > The doctrine of evolution is destined to be the guiding principle of investigation for the whole of the organic sciences. This theory is incomparably more powerful than any other in explaining the facts of nature. - **Richard Owen, Comparative Anatomist and Establishment Figure** (skeptic, skeptical) - Synthesized from period accounts - Owen's anatomical critiques, 1858-1859 > I confess the idea of an unbroken chain of being, modified by natural selection alone, strains credulity without demonstrable proof from the fossil record. - **The Times of London, Editorial Voice** (media, predictive) - The Times of London, August 1858 > Whether Mr. Darwin's ingenious hypothesis will eventually modify our views of creation remains to be seen, but such inquiries command respect and demand serious consideration from thinking men. - **Adam Sedgwick, Geologist and Cambridge Don** (skeptic, skeptical) - Letter from Sedgwick to Darwin, November 24, 1859 (reflecting 1858 concerns) > I have read your able & interesting paper... but I cannot (in the main points) think as you do - & as I shall always think you a good honest man, I wish not to say a word that might sting. - **Alfred Russel Wallace, Naturalist and Co-theorist** (expert, supportive) - Synthesized from period accounts - Wallace's correspondence, August-September 1858 > I feel much flattered by the way the results of my investigations have been received by the Royal Society, and I do hope the subject will be fairly discussed among naturalists. ## Impact The joint presentation by Darwin and Wallace on July 1, 1858, unified biological thought around a single explanatory framework for life's diversity. Within five years, Darwin's full argument in *On the Origin of Species* would reshape not just biology but philosophy, theology, and how humans understood their place in nature. ## Sources - [Charles Darwin](https://en.wikipedia.org/wiki/Charles_Darwin) - Wikipedia --- Canonical: https://recap.at/1858/darwin-evolution-theory