user: You are a structured reasoning expert tasked with solving problems step by step. 
You first think about the reasoning process in the mind and then provide the answer. The reasoning process and answer should be enclosed within <think> </think> and <answer> </answer> tags, respectively, i.e., <think> reasoning process here </think> <answer> answer here </answer>. 
Given a question and the associated knowledge graph triplets (entity, relation, entity), you are asked to answer the question with these triplets and your own knowledge. 
You can break down the original question into several sub-questions and explore the given knowledge graph to solve them step-by-step. If there are multiple possible answers, choose one as the final answer. 
After thinking, when you finally reach a conclusion, clearly state the answer within <answer> </answer> tags, i.e., <answer> answer here </answer>. 
Question: Which Darwin book on evolution was published in 1839? 
Knowledge Triplets: The Autobiography of Charles Darwin, book.written_work.author, Francis Darwin
Charles Darwin, book.book_subject.works, Darwin on Trial
Darwin's Sacred Cause: How a Hatred of Slavery Shaped Darwin's Views on Human Evolution, book.written_work.author, Adrian Desmond
The Correspondence of Charles Darwin, Volume 8: 1860, book.written_work.editor, Janet Browne
Darwin and His Great Discovery, book.written_work.subjects, Biography
Charles Darwin, book.book_subject.works, The Tree of Life: Charles Darwin
Darwin's Black Box: The Biochemical Challenge to Evolution, book.book.editions, Darwin's Black Box: The Biochemical Challenge to Evolution
Charles Darwin: The Power of Place, book.book.genre, Biography
Darwin's Black Box: The Biochemical Challenge to Evolution, book.written_work.subjects, Evolution
Phillip Johnson, book.author.book_editions_published, Darwin on trial
Charles Darwin, book.book_subject.works, Charles Darwin: The Concise Story of an Extraordinary Man
The Reluctant Mr. Darwin, book.book.genre, Autobiography
Janet Browne, book.author.works_written, Charles Darwin: Voyaging
For the rest of his life, Darwin tried to prove his theories., base.kwebbase.kwsentence.next_sentence, He published further works on the adaptations of plants, including breeds of insectivorous and climbing plants.
Darwin: Evidence & Evolution, common.topic.notable_for, g.1258tzz53
The Tree of Life: Charles Darwin, book.written_work.subjects, Charles Darwin
Charles Darwin, book.written_work.subjects, Charles Darwin
The Correspondence of Charles Darwin, Volume 3: 1844-1846, common.topic.notable_types, Book
Francis Darwin, book.author.works_written, The Autobiography of Charles Darwin
Gertrude Himmelfarb, book.author.works_written, Darwin and the Darwinian revolution
Phillip Johnson, book.author.book_editions_published, Darwin on Trial
Charles Darwin, book.book.genre, Biography
Darwin, book.written_work.subjects, Great Britain
The Correspondence of Charles Darwin, Volume 7: 1858-1859, book.written_work.next_in_series, The Correspondence of Charles Darwin, Volume 8: 1860
Charles Darwin and the Evolution of Evolution, common.topic.notable_for, g.12587ywcd
Darwin's Radio, book.book.genre, Science Fiction
Darwin, book.book.editions, Darwin
The Correspondence of Charles Darwin, Volume 1: 1821-1836, book.written_work.original_language, English Language
Natural selection, book.book_subject.works, Darwin Loves You: Natural Selection and the Re-Enchantment of the World
Darwin's big book, common.topic.notable_types, Journal article
Darwin's untimely burial, book.written_work.author, Stephen Jay Gould
Darwin, book.written_work.subjects, Natural history
The Reluctant Mr. Darwin, book.written_work.subjects, Science
Darwin and the Darwinian revolution, book.written_work.subjects, Natural history
The Correspondence of Charles Darwin, Volume 3: 1844-1846, book.written_work.previous_in_series, The Correspondence of Charles Darwin, Volume 2: 1837-1843
The Politics of Evolution: Morphology, Medicine, and Reform in Radical London, book.written_work.subjects, Charles Darwin
The Correspondence of Charles Darwin, Volume 3: 1844-1846, base.documentaryeditions.documentary_edition.editing_project, Darwin Correspondence Project
The Correspondence of Charles Darwin, Volume 4: 1847-1850, book.written_work.part_of_series, The Correspondence of Charles Darwin
The Correspondence of Charles Darwin, Volume 7: 1858-1859, common.topic.notable_types, Book
Charles Darwin, common.topic.image, Charles Robert Darwin. At the age of 51, Charles Darwin had just published On the Origin of Species.
The Correspondence of Charles Darwin, Volume 15: 1867, book.written_work.original_language, English Language
The Correspondence of Charles Darwin, Volume 12: 1864, book.written_work.part_of_series, The Correspondence of Charles Darwin
The Correspondence of Charles Darwin, Volume 1: 1821-1836, book.written_work.subjects, Biology
Darwin's untimely burial, book.cited_work.cited_in, Optimal-Design Models and the Strategy of Model Building in Evolutionary Biology
Charles Darwin and the Evolution of Evolution, exhibitions.exhibition.subjects, Charles Darwin
Darwin's untimely burial, book.published_work.published_in_published_as, m.0bj9rjv
Charles Darwin, book.book_edition.author_editor, Grant Allen
Darwin and His Great Discovery, book.written_work.author, L. Sprague de Camp
Charles Darwin, book.book_subject.works, Darwin Loves You: Natural Selection and the Re-Enchantment of the World
Francis Darwin, book.author.works_written, The elements of botany
Darwin and His Great Discovery, book.written_work.subjects, Evolution
Charles Darwin, book.written_work.subjects, England
The Correspondence of Charles Darwin, Volume 7: 1858-1859, book.written_work.author, Charles Darwin
Francis Darwin, book.author.works_written, The Life and Letters of Charles Darwin
Darwin Loves You: Natural Selection and the Re-Enchantment of the World, book.book.editions, Darwin Loves You: Natural Selection and the Re-Enchantment of the World
The Correspondence of Charles Darwin, Volume 14: 1866, common.topic.notable_types, Book
Charles Darwin, book.book.genre, Autobiography
Phillip Johnson, book.author.works_written, Darwin on Trial
Francis Darwin, book.author.works_written, Observations on Stomata
The Correspondence of Charles Darwin, Volume 16: 1868, book.written_work.author, Charles Darwin
The Correspondence of Charles Darwin, Volume 11: 1863, book.written_work.author, Charles Darwin
The Correspondence of Charles Darwin, Volume 5: 1851-1855, book.written_work.author, Charles Darwin
Charles Darwin, book.book_subject.works, Charles Darwin in Cyberspace
Darwin's finches, book.book_subject.works, The Beak of the Finch: A Story of Evolution in Our Time
The Reluctant Mr. Darwin, book.written_work.subjects, Charles Darwin
The Correspondence of Charles Darwin, Volume 18: 1870, book.written_work.author, Charles Darwin
Charles Darwin, book.book_subject.works, Darwin
The Correspondence of Charles Darwin, Volume 9: 1861, book.written_work.author, Charles Darwin
The Correspondence of Charles Darwin, Volume 4: 1847-1850, base.documentaryeditions.documentary_edition.editing_project, Darwin Correspondence Project
The Correspondence of Charles Darwin, Volume 1: 1821-1836, book.written_work.subjects, Natural history
The Correspondence of Charles Darwin, Volume 3: 1844-1846, book.written_work.original_language, English Language
The Correspondence of Charles Darwin, Volume 5: 1851-1855, book.written_work.part_of_series, The Correspondence of Charles Darwin
Darwin's untimely burial, book.cited_work.cited_in, Natural Selection and the Criteria by Which a Theory is Judged
The Correspondence of Charles Darwin, book.literary_series.works_in_this_series, The Correspondence of Charles Darwin, Volume 5: 1851-1855
The Correspondence of Charles Darwin, Volume 5: 1851-1855, base.documentaryeditions.documentary_edition.editing_project, Darwin Correspondence Project
Charles Darwin, book.book_subject.works, Darwin's untimely burial
The Reluctant Mr. Darwin, book.written_work.subjects, Natural history
Darwin and the Darwinian revolution, common.topic.notable_types, Book
The Correspondence of Charles Darwin, Volume 1: 1821-1836, book.written_work.next_in_series, The Correspondence of Charles Darwin, Volume 2: 1837-1843
Charles Robert Darwin. At the age of 51, Charles Darwin had just published On the Origin of Species., common.image.appears_in_topic_gallery, Charles Darwin
The Correspondence of Charles Darwin, Volume 9: 1861, book.written_work.editor, Janet Browne
The Survival of Charles Darwin: A Biography of a Man and an Idea, book.written_work.author, Ronald W. Clark
The Correspondence of Charles Darwin, Volume 12: 1864, common.topic.notable_types, Book
Darwin's Black Box: The Biochemical Challenge to Evolution, book.book.editions, Darwin's black box : the biochemical challenge to evolution
The Correspondence of Charles Darwin, Volume 1: 1821-1836, common.topic.notable_types, Book
Darwin's Black Box: The Biochemical Challenge to Evolution, book.written_work.subjects, Charles Darwin
Charles Darwin, book.written_work.subjects, Science
The Reluctant Mr. Darwin, book.book.genre, Biography
Darwin's Radio, book.written_work.author, Greg Bear
Darwin's Black Box: The Biochemical Challenge to Evolution, book.book_edition.author_editor, Michael Behe
The Correspondence of Charles Darwin, Volume 16: 1868, book.written_work.original_language, English Language
The Correspondence of Charles Darwin, Volume 6: 1856-1857, book.written_work.part_of_series, The Correspondence of Charles Darwin
Darwin and the Darwinian revolution, book.written_work.subjects, Science
The Tree of Life: Charles Darwin, book.book.editions, The Tree of Life: Charles Darwin
The Correspondence of Charles Darwin, Volume 10: 1862, book.written_work.original_language, English Language
The Correspondence of Charles Darwin, book.literary_series.author_s, Charles Darwin
Darwin's big book, book.journal_article.journal_publication, m.0bhhzsy
m.0bhhzsy, book.journal_publication.article, Darwin's big book
The Correspondence of Charles Darwin, Volume 2: 1837-1843, book.written_work.previous_in_series, The Correspondence of Charles Darwin, Volume 1: 1821-1836
The Correspondence of Charles Darwin, Volume 13: 1865, book.written_work.author, Charles Darwin
The Autobiography of Charles Darwin, book.book.genre, Autobiography
Darwin Loves You: Natural Selection and the Re-Enchantment of the World, book.written_work.author, George Lewis Levine
Charles Darwin, book.book_subject.works, The Survival of Charles Darwin: A Biography of a Man and an Idea
Charles Darwin, book.author.series_written_or_contributed_to, The Correspondence of Charles Darwin
Darwin, book.written_work.subjects, History
Who Was Charles Darwin?, book.written_work.author, Deborah Hopkinson
The Correspondence of Charles Darwin, Volume 5: 1851-1855, common.topic.notable_types, Book
The Correspondence of Charles Darwin, Volume 7: 1858-1859, book.written_work.original_language, English Language
The Reluctant Mr. Darwin, book.written_work.subjects, England
David Quammen, book.author.book_editions_published, The Reluctant Mr. Darwin
The Correspondence of Charles Darwin, Volume 2: 1837-1843, book.written_work.original_language, English Language
Janet Browne, book.author.works_edited, The Correspondence of Charles Darwin, Volume 9: 1861
The Reluctant Mr. Darwin, book.written_work.subjects, Technology
He published further works on the adaptations of plants, including breeds of insectivorous and climbing plants., base.kwebbase.kwsentence.previous_sentence, For the rest of his life, Darwin tried to prove his theories.
Charles Darwin: Voyaging, book.written_work.subjects, Charles Darwin
Celebrating Evolution the Web Way, book.published_work.published_in_published_as, m.0b73br5
Darwin's untimely burial, book.cited_work.cited_in, The Role of Adaptation in Archaeological Explanation
Darwin and the Darwinian revolution, book.book.editions, Darwin and the Darwinian revolution
Darwin and the Darwinian revolution, book.written_work.author, Gertrude Himmelfarb
Darwin on Trial, book.book.editions, Darwin on Trial
The Autobiography of Charles Darwin, book.written_work.subjects, England
Charles Darwin: The Concise Story of an Extraordinary Man, book.written_work.author, Tim Berra
The Correspondence of Charles Darwin, book.literary_series.works_in_this_series, The Correspondence of Charles Darwin, Volume 4: 1847-1850
Darwin, book.written_work.subjects, Evolution
The Correspondence of Charles Darwin, Volume 4: 1847-1850, book.written_work.author, Charles Darwin
Grant Allen, book.author.works_written, Charles Darwin
The Correspondence of Charles Darwin, Volume 1: 1821-1836, book.written_work.subjects, Evolution
Darwin's untimely burial, book.cited_work.cited_in, Individuals, Hierarchies and Processes: Towards a More Complete Evolutionary Theory
Charles Darwin, book.book_subject.works, Charles Darwin: The Power of Place
Darwin Loves You: Natural Selection and the Re-Enchantment of the World, book.written_work.subjects, Charles Darwin
The Correspondence of Charles Darwin, Volume 4: 1847-1850, book.written_work.previous_in_series, The Correspondence of Charles Darwin, Volume 3: 1844-1846
Darwin's Sacred Cause: How a Hatred of Slavery Shaped Darwin's Views on Human Evolution, book.written_work.author, James Moore
Darwin and His Great Discovery, book.written_work.original_language, English Language
Charles Darwin, book.book_subject.works, Who Was Charles Darwin?
The Correspondence of Charles Darwin, Volume 15: 1867, common.topic.notable_types, Book
Darwin's Black Box: The Biochemical Challenge to Evolution, book.written_work.original_language, English Language
The Correspondence of Charles Darwin, Volume 15: 1867, book.book.genre, Science
Charles Darwin, book.written_work.author, Grant Allen
The Edge of Evolution, book.written_work.previous_in_series, Darwin's Black Box: The Biochemical Challenge to Evolution
In 1856, Darwin began to write his great work on evolution and natural selection., base.kwebbase.kwsentence.kwtopic, Charles Darwin
Darwin's Radio, book.book.editions, Darwin's Radio
Darwin's big book, common.topic.notable_for, g.1254xclz3
Darwin and His Great Discovery, book.written_work.subjects, Charles Darwin
Charles Darwin, book.book_edition.book, Charles Darwin
The Correspondence of Charles Darwin, Volume 1: 1821-1836, base.documentaryeditions.documentary_edition.editing_project, Darwin Correspondence Project
Darwin and the Darwinian revolution, book.written_work.subjects, Charles Darwin
Charles Darwin and the Evolution of Evolution, common.topic.notable_types, Exhibition
The Correspondence of Charles Darwin, Volume 17: 1869, book.written_work.author, Charles Darwin
Celebrating Evolution the Web Way, book.written_work.subjects, Charles Darwin
Darwin on Trial, book.written_work.author, Phillip Johnson
Darwin's untimely burial, book.cited_work.cited_in, Evolutionary implications of design and performance characteristics of prehistoric pottery
Charles Darwin, book.book_subject.works, Darwin's Sacred Cause: How a Hatred of Slavery Shaped Darwin's Views on Human Evolution
Charles Darwin, book.written_work.subjects, Biology
Darwin's untimely burial, book.written_work.subjects, Charles Darwin
The Correspondence of Charles Darwin, Volume 1: 1821-1836, book.written_work.subjects, Science
The Correspondence of Charles Darwin, Volume 5: 1851-1855, book.written_work.original_language, English Language
The Correspondence of Charles Darwin, Volume 13: 1865, book.written_work.original_language, English Language
Janet Browne, book.author.works_edited, The Correspondence of Charles Darwin, Volume 8: 1860
Darwin Loves You: Natural Selection and the Re-Enchantment of the World, book.book.editions, Darwin Loves You: Natural Selection and the Re-enchantment of the World
The Reluctant Mr. Darwin, book.written_work.subjects, History
The Correspondence of Charles Darwin, Volume 14: 1866, book.written_work.original_language, English Language
Darwin's untimely burial, book.cited_work.cited_in, In Defense of Darwin's Theory
The Reluctant Mr. Darwin, book.written_work.subjects, Biology
Charles Darwin, book.book_subject.works, The Reluctant Mr. Darwin
Darwin's untimely burial, book.cited_work.cited_in, Evolutionary Morphology: Beyond the Analogous, the Anecdotal, and the ad Hoc
Darwin and the Darwinian revolution, book.written_work.subjects, Biology
Natural selection, book.book_subject.works, Darwin's untimely burial
The Reluctant Mr. Darwin, book.book.editions, The Reluctant Mr. Darwin
Darwin on Trial, book.written_work.subjects, Evolution
The Correspondence of Charles Darwin, Volume 16: 1868, common.topic.notable_types, Book
Darwin Loves You: Natural Selection and the Re-Enchantment of the World, book.book.editions, Darwin and the novelists : patterns of science in Victorian fiction
The Beak of the Finch: A Story of Evolution in Our Time, book.written_work.subjects, Darwin's finches
Charles Darwin, book.book_subject.works, Darwin's Black Box: The Biochemical Challenge to Evolution
The Correspondence of Charles Darwin, Volume 7: 1858-1859, book.written_work.part_of_series, The Correspondence of Charles Darwin
The Correspondence of Charles Darwin, Volume 15: 1867, book.written_work.author, Charles Darwin
Charles Darwin: A Scientific Biography, book.written_work.author, Gavin de Beer
Darwin's Children, book.written_work.author, Greg Bear
Charles Darwin, base.kwebbase.kwtopic.has_sentences, He published further works on the adaptations of plants, including breeds of insectivorous and climbing plants.
The Autobiography of Charles Darwin, book.written_work.subjects, Biology
The Darwin conspiracy, book.book.editions, The Darwin conspiracy
Charles Darwin, book.written_work.subjects, Great Britain
The Correspondence of Charles Darwin, Volume 3: 1844-1846, book.written_work.author, Charles Darwin
Charles Darwin, book.book.editions, Charles Darwin
The Correspondence of Charles Darwin, Volume 2: 1837-1843, book.written_work.next_in_series, The Correspondence of Charles Darwin, Volume 3: 1844-1846
The Correspondence of Charles Darwin, Volume 6: 1856-1857, book.written_work.original_language, English Language
Darwin's Black Box: The Biochemical Challenge to Evolution, book.written_work.author, Michael Behe
Darwin and His Great Discovery, book.written_work.subjects, History
The Autobiography of Charles Darwin, book.book.genre, Science
The Tree of Life: Charles Darwin, book.written_work.author, Peter Sís
The Correspondence of Charles Darwin, book.literary_series.works_in_this_series, The Correspondence of Charles Darwin, Volume 6: 1856-1857
The Autobiography of Charles Darwin, book.written_work.subjects, Evolution
Darwin's Children, book.book.genre, Speculative fiction
Darwin's Black Box: The Biochemical Challenge to Evolution, common.topic.notable_types, Book
Charles Darwin: A Scientific Biography, book.book.editions, Charles Darwin; evolution by natural selection
The Correspondence of Charles Darwin, Volume 15: 1867, book.book.genre, Biography
Darwin, book.book.editions, Darwin.
The Autobiography of Charles Darwin, book.written_work.original_language, English Language
Charles Darwin: The Power of Place, book.book.editions, Charles Darwin: The Power of Place
Darwin's Black Box: The Biochemical Challenge to Evolution, book.book_edition.book, Darwin's Black Box: The Biochemical Challenge to Evolution
Darwin's big book, book.written_work.subjects, Charles Darwin
Darwinism, book.book_subject.works, Darwinismus und Sozialwissenschaft
Charles Darwin, book.book_subject.works, George Canning's left buttock and the origin of species
Darwin, book.written_work.author, Philip Appleman
The Correspondence of Charles Darwin, Volume 8: 1860, book.written_work.author, Charles Darwin
Charles Darwin, book.book_subject.works, Charles Darwin: A Scientific Biography
The Correspondence of Charles Darwin, Volume 1: 1821-1836, book.written_work.subjects, England
Charles Darwin: A Scientific Biography, book.written_work.subjects, Charles Darwin
Charles Darwin: Voyaging, book.book.editions, Charles Darwin : a biography
The Autobiography of Charles Darwin, book.written_work.subjects, Science
The Correspondence of Charles Darwin, Volume 12: 1864, book.written_work.original_language, English Language
Darwin's big book, book.written_work.author, Stephen Jay Gould
The Correspondence of Charles Darwin, Volume 2: 1837-1843, common.topic.notable_types, Book
The Correspondence of Charles Darwin, Volume 6: 1856-1857, book.written_work.next_in_series, The Correspondence of Charles Darwin, Volume 7: 1858-1859
Charles Darwin: Voyaging, book.written_work.author, Janet Browne
The Autobiography of Charles Darwin, book.written_work.subjects, History
The Correspondence of Charles Darwin, Volume 10: 1862, book.written_work.author, Charles Darwin
The Correspondence of Charles Darwin, Volume 18: 1870, book.written_work.original_language, English Language
The Correspondence of Charles Darwin, Volume 9: 1861, book.written_work.original_language, English Language
The Correspondence of Charles Darwin, Volume 7: 1858-1859, book.written_work.previous_in_series, The Correspondence of Charles Darwin, Volume 6: 1856-1857
Charles Robert Darwin. At the age of 51, Charles Darwin had just published On the Origin of Species., common.image.size, m.05tvxc8
The Correspondence of Charles Darwin, Volume 1: 1821-1836, book.written_work.part_of_series, The Correspondence of Charles Darwin
Darwin and His Great Discovery, book.written_work.subjects, Biology
The Correspondence of Charles Darwin, Volume 8: 1860, book.written_work.previous_in_series, The Correspondence of Charles Darwin, Volume 7: 1858-1859
Charles Darwin and the Evolution of Evolution, exhibitions.exhibition.venues, m.05bm2kn
Darwin Loves You: Natural Selection and the Re-Enchantment of the World, book.written_work.subjects, Natural selection
Darwin's Radio, book.book.genre, Novel
The Autobiography of Charles Darwin, book.written_work.subjects, Great Britain
George Lewis Levine, book.author.works_written, Darwin Loves You: Natural Selection and the Re-Enchantment of the World
Charles Darwin, book.written_work.subjects, Natural history
The Life and Letters of Charles Darwin, book.written_work.author, Francis Darwin
The Correspondence of Charles Darwin, Volume 8: 1860, book.written_work.original_language, English Language
Evolution, book.periodical.publisher, m.0m_5hsd
Charles Darwin, book.book_subject.works, Darwin and the Darwinian revolution
Darwin's big book, book.written_work.subjects, Evolution
The Correspondence of Charles Darwin, Volume 10: 1862, book.written_work.part_of_series, The Correspondence of Charles Darwin
Charles Darwin: The Power of Place, book.written_work.author, Janet Browne
The Tree of Life: Charles Darwin, book.book.genre, Children's literature
The Correspondence of Charles Darwin, Volume 5: 1851-1855, book.written_work.next_in_series, The Correspondence of Charles Darwin, Volume 6: 1856-1857
Charles Darwin: Voyaging, book.book.editions, Charles Darwin: Voyaging
Darwin's big book, common.topic.article, m.0bmv5wq
Darwin's Black Box: The Biochemical Challenge to Evolution, common.topic.notable_types, Book Edition
On the origin of species by means of natural selection, book.written_work.author, Charles Darwin
Darwin and the Darwinian revolution, book.written_work.subjects, Evolution
The Autobiography of Charles Darwin, book.book.genre, Biography
Darwin, book.written_work.subjects, Charles Darwin
The Correspondence of Charles Darwin, Volume 1: 1821-1836, book.written_work.subjects, History
Charles Darwin, book.book_subject.works, Celebrating Evolution the Web Way
Darwin and His Great Discovery, book.written_work.subjects, Natural history
Michael Behe, book.author.works_written, Darwin's Black Box: The Biochemical Challenge to Evolution
The Correspondence of Charles Darwin, Volume 5: 1851-1855, book.written_work.previous_in_series, The Correspondence of Charles Darwin, Volume 4: 1847-1850
Darwin's Black Box: The Biochemical Challenge to Evolution, common.topic.article, m.0502n1
The Correspondence of Charles Darwin, Volume 2: 1837-1843, book.written_work.author, Charles Darwin
John Darnton, book.author.works_written, The Darwin conspiracy
Darwin's untimely burial, book.written_work.subjects, Natural selection
The Correspondence of Charles Darwin, Volume 6: 1856-1857, book.written_work.author, Charles Darwin
The Correspondence of Charles Darwin, Volume 14: 1866, book.written_work.author, Charles Darwin
The Correspondence of Charles Darwin, book.literary_series.works_in_this_series, The Correspondence of Charles Darwin, Volume 7: 1858-1859
Darwin's Black Box: The Biochemical Challenge to Evolution, book.book.genre, Non-fiction
Darwin, book.written_work.subjects, Science
Charles Darwin, base.kwebbase.kwtopic.has_sentences, In 1856, Darwin began to write his great work on evolution and natural selection.
The Correspondence of Charles Darwin, Volume 4: 1847-1850, book.written_work.original_language, English Language
Charles Darwin, book.written_work.subjects, Technology
The Correspondence of Charles Darwin, Volume 4: 1847-1850, common.topic.notable_types, Book
The Reluctant Mr. Darwin, book.written_work.author, David Quammen
Darwin's Black Box: The Biochemical Challenge to Evolution, book.written_work.next_in_series, The Edge of Evolution
The Tree of Life: Charles Darwin, book.book.genre, Non-fiction
Darwin and His Great Discovery, book.written_work.subjects, Science
Charles Darwin, book.book_subject.works, Charles Darwin: Voyaging
Darwin on Trial, book.written_work.subjects, Natural history
Darwin's Sacred Cause: How a Hatred of Slavery Shaped Darwin's Views on Human Evolution, book.written_work.subjects, Charles Darwin
The Correspondence of Charles Darwin, Volume 2: 1837-1843, base.documentaryeditions.documentary_edition.editing_project, Darwin Correspondence Project
Charles Darwin: Voyaging, book.book.genre, Biography
The Reluctant Mr. Darwin, book.written_work.subjects, Evolution
John Darnton, book.author.book_editions_published, The Darwin conspiracy
Darwin's Black Box: The Biochemical Challenge to Evolution, book.written_work.subjects, Intelligent Design
The Correspondence of Charles Darwin, book.literary_series.works_in_this_series, The Correspondence of Charles Darwin, Volume 1: 1821-1836
Darwin's Radio, book.book.editions, Darwin's radio
The Correspondence of Charles Darwin, Volume 6: 1856-1857, book.written_work.previous_in_series, The Correspondence of Charles Darwin, Volume 5: 1851-1855
Francis Darwin, book.author.works_written, The Power of Movement in Plants
Charles Darwin, book.book_subject.works, The Politics of Evolution: Morphology, Medicine, and Reform in Radical London
The Autobiography of Charles Darwin, book.written_work.author, Charles Darwin
Charles Darwin, book.book_subject.works, Darwin and His Great Discovery
In 1856, Darwin began to write his great work on evolution and natural selection., base.kwebbase.kwsentence.dates, m.0c11jsp
The Correspondence of Charles Darwin, Volume 1: 1821-1836, book.written_work.author, Charles Darwin
The Darwin conspiracy, book.written_work.subjects, Charles Darwin
The Correspondence of Charles Darwin, book.literary_series.works_in_this_series, The Correspondence of Charles Darwin, Volume 3: 1844-1846
Michael Behe, book.author.book_editions_published, Darwin's Black Box: The Biochemical Challenge to Evolution
The Correspondence of Charles Darwin, Volume 3: 1844-1846, book.written_work.part_of_series, The Correspondence of Charles Darwin
The Correspondence of Charles Darwin, Volume 12: 1864, book.written_work.author, Charles Darwin
Charles Darwin, book.book_subject.works, The Darwin conspiracy
The Correspondence of Charles Darwin, Volume 3: 1844-1846, book.written_work.next_in_series, The Correspondence of Charles Darwin, Volume 4: 1847-1850
The Correspondence of Charles Darwin, Volume 13: 1865, common.topic.notable_types, Book
The Correspondence of Charles Darwin, book.literary_series.works_in_this_series, The Correspondence of Charles Darwin, Volume 2: 1837-1843
Darwin's Sacred Cause: How a Hatred of Slavery Shaped Darwin's Views on Human Evolution, book.book.editions, Darwin's sacred cause : how a hatred of slavery shaped Darwin's views on human evolution
Charles Darwin, book.book_subject.works, Darwin's big book
Darwin and His Great Discovery, book.written_work.author, Catherine Crook de Camp
Catherine Crook de Camp, book.author.works_written, Darwin and His Great Discovery
Darwin Loves You: Natural Selection and the Re-Enchantment of the World, book.book.genre, Non-fiction
The Correspondence of Charles Darwin, Volume 6: 1856-1857, common.topic.notable_types, Book
Greg Bear, book.author.book_editions_published, Darwin's Radio
Darwin on Trial, book.written_work.subjects, Charles Darwin
The Autobiography of Charles Darwin, book.written_work.subjects, Natural history
Charles Darwin, book.book_subject.works, Charles Darwin
Social Darwinism, book.book_subject.works, Banquet at Delmonico's: Great Minds, the Gilded Age, and the Triumph of Evolution in America
The Darwin conspiracy, book.written_work.author, John Darnton
Darwin, book.written_work.subjects, Biology
The Correspondence of Charles Darwin, Volume 4: 1847-1850, book.written_work.next_in_series, The Correspondence of Charles Darwin, Volume 5: 1851-1855
The Correspondence of Charles Darwin, Volume 2: 1837-1843, book.written_work.part_of_series, The Correspondence of Charles Darwin
Darwin on Trial, book.book.editions, Darwin on trial

Answer: The Voyage of the Beagle