Hahnemann, Samuel
Aiton's Encyclopedia (1910)
ha'neh-man, Samuel (1755-1843), a German physician, the founder of homeopathy. He was born at Meissen, Saxony, in which city his father was a skillful decorator of the sort of china known as Dresden ware. It was intended that the boy should follow his father's calling, but he took to the profession of medicine. He studied at Leipsic, where he supported himself by translating medical works. He was familiar with Latin, Greek, the chief modern languages of Europe, and with Arabic as well. A translation from English into German of Cullen's Materia Medica, a description of the drugs then known, appears to have been the turning point in his life. His attention was arrested by the article on quinine. He experimented on himself, finding that a dose of quinine produced symptoms of ague, for which that drug is a sovereign remedy. Experiments with other drugs led him to the conclusion that medicine cures diseases by producing symptoms similar to those of the disease itself, that is to say, by exciting a mild form of the disease itself. Expressed in Latin, this principle runs, "Similia similibus curantur." The corresponding English expression is "Like cures like." He published a Materia Medica of his own, and a number of works describing his system of medicine. In 1820 he was forbidden to teach, publish, or practice until the time of his death. In 1855, on the centennial anniversary of his birth, a monument was erected to his memory at Leipsic, the scene of his former triumphs and humiliations. The name suggested by him for his system of remedies was homeopathy, a Greek word meaning likeness of condition or feeling. His adherents and followers have spread over the civilized world. They maintain a large number of medical colleges and form a considerable body of practitioners. In the public mind, homeopathy is associated with the giving of drugs in infinitesimal quantities. The school is popularly credited with having influenced the so-called regular or allopathic physicians to use drugs less freely. See Medicine ; Disease
What Has Changed in the Last Century
Aiton's in 1910 could report that Hahnemann's followers "maintain a large number of medical colleges and form a considerable body of practitioners" — in the United States alone there were around twenty homeopathic medical schools at the turn of the century. Every one of them has since closed or converted to conventional teaching; the last and most famous, Hahnemann Medical College in Philadelphia, was absorbed into Drexel University in 2002, and Hahnemann University Hospital shut its doors in 2019. Repeated systematic reviews, including Australia's national health council assessment in 2015, have found no reliable evidence that homeopathic remedies work beyond placebo, and chemists point out that Hahnemann's higher dilutions are unlikely to contain a single molecule of the original substance. Britain's NHS stopped routine funding of homeopathic prescriptions in 2017, though the practice remains widely available commercially in Europe, India and elsewhere.
Written for this edition, 2026.