Entomology, the scientific study of insects and closely related terrestrial arthropods, has been impelled by the necessity of societies to protect themselves from insect-borne diseases, crop losses to pest insects, and insect-related discomfort, as well as by people's natural curiosity. This timeline article traces the history of entomology. Timelines of entomology Timeline of entomology - prior to 1800 Timeline of entomology - 1800-1850 Timeline of entomology - 1850-1900 Timeline of entomology - post 1900 History of classification Many different classifications were proposed by early entomologists. It is important to realise that whilst many early names survive, they may be at different levels in the phylogenetic hierarchy. For instance, many families were first published as genera, as for example the genus Mymar, proposed by Alexander Henry Haliday in 1829, is now represented by the family Mymaridae. History of forensic entomology Please see the History of forensic entomology page for more information on this subject. See also European and American voyages of scientific exploration List of natural history dealers References Carpenter, Mathilde M., 1945 Bibliography of Biographies of Entomologists The American Midland Naturalist:33 No. 1 Carpenter, Mathilde M., 1953. Bibliography of Biographies of Entomologists (Supplement) American Midland Naturalist:50, No. 2 :257-348. Chou Io, 1990. A history of Chinese entomology. translated by Wang Siming revised by Chou Io, Lu Kinsheng & Kang Shusen Derksen, W. Scheiding-Göllner, U. 1965–1975. Index litteraturae entomologicae. Serie II: Die Welt-Literatur über die gesamte Entomologie von 1864 bis 1900. 5 vols. Deutsche Akademie der Landwirtschaftswissenschaften, Berlin Gaedike, R. 1985. Berichtigungen und Ergänzungen zu P. Gilbert: A compendium of biographical literature on deceased entomologists. Beitr. Ent. 35: 368–408. Gilbert, P. 1977. A compendium of the biographical literature on deceased entomologists. Xiv + 455 pp. British Museum (Natural History), London Hagen, H. A. 1862–1866. Bibliotheca entomologica. Die Litteratur über das ganze Gebiet der Entomologie bis zum Jahre 1862. 2 vols. W. Engelmann, Leipzig. Horn, W. & Schenkling, S. 1928–1929. Index litteraturae entomologicae. Serie: Die Welt-Literatur uber die gesamte Entomologie bis inklusive 1863. 4 vols. W. Horn, Berlin-Dahlem. Musgrave, A. 1932. Bibliography of Australian Entomology 1775-1930 with biographical notes on authors and collectors. R. Zool. Soc. New South Wales, viii + 380 pp. Nissen, C. 1966-1969 Die zoologische Buchillustration. Ihre Bibliographie und Geschichte.Stuttgart, Anton Hiersemann, 8 Lief., 1–666. Bibliographical reference work of the illustrated zoological rom antiquity to the 20th century Sherborn, C. D. & Woodward, B. B. 1901. Notes on the