title: When did it begin?
mesh_terms: D000486:Allergy and Immunology / Q000266:history*; D000717:Anatomy, Comparative / Q000266:history; D001634:Bibliographies as Topic; D004626:Embryology / Q000266:history; D049670:History, 17th Century; D049671:History, 18th Century; D049672:History, 19th Century; D049673:History, 20th Century; D049690:History, Ancient; D049691:History, Medieval