Timeline of entomology – prior to 1800

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. Though many significant developments in the field happened only recently, in the 19th–20th centuries, the history of entomology stretches back to prehistory.

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