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|Died||1607 (aged 44–45)|
|Alma mater||University of Marburg|
University of Helmstedt
University of Heidelberg
|Psychologia Anthropologica |
|Coined definition of anthropology|
Casmann started studying philosophy at the University of Marburg in 1581 under the guidance of Rudolf Goclenius the Elder. From September 1582 he studied philosophy and theology at the University of Helmstedt, where he earned a Magister degree. In 1587, he enrolled at the University of Heidelberg.
Casmann started teaching at Helmstedt, where he gave lectures on logic in which he clearly spoke out against the teachings of the Aristotelian system. In 1589, Casmann joined the Schüttorf Trivial School, which in 1591 was moved to Steinfurt and expanded to the academic Gymnasium Illustre. At Steinfurt he taught philosophy and anthropology. In 1594, Casmann obtained an appointment for the post of rector in Stade, where the City Council had set up a Gymnasium. In Stade, Casmann taught philosophy and theology, specializing in logic and natural philosophy.
Otto Casmann died on 1 August 1607 in Stade when he was 45 years old. He was survived by his wife and three daughters.
Anthropology and psychology
Casmann is important to the history of anthropology and psychology. He began the separation of these two subjects from the Aristotelian framework of metaphysics, becoming a classical representative of the secularization of science in the early modern period. During his time at Steinfurt he produced the work Psychologia Anthropologica, sive doctrina animae Humanae (Hanau, 1594). There he consolidated the use of the term "anthropology" coined by Magnus Hundt (1449-1519). During his time in Stade, he wrote the second volume of Psychologia Anthropologica (Hanau, 1596) in which he described the construction of the human body. In 1594, Casmann defined anthropology as "the doctrine of human nature. Human nature is an essence partaking of two worlds, the spiritual and the corporeal, yet united in one vehicle." This definition is still considered valid today.
- Fernando Vidal (1 December 2011). The Sciences of the Soul: The Early Modern Origins of Psychology. University of Chicago Press. p. 55. ISBN 978-0-226-85588-2.
- In Latin: Anthropologia est doctrina humanae naturae. Humana natura est geminae naturae mundanae, spiritualis et corpareae, in unum hyphistamenon unitae particeps essentia. See Stagl, Justin (2000). "Anthropological universality. On the validity of generalizations about human nature". In Roughley, Neil (ed.). Being Humans: Anthropological Universality and Particularity in Transdisciplinary Perspectives. Walter de Gruyter. p. 27. ISBN 9783110169744.
- D. Mahnke: Rektor Casmann in Stade: ein vergessener Gegner aristotelischer Philosophie und Naturwissenschaftler im 16. Jahrhundert (Rector Casmann in Stade: a forgotten opponent of Aristotelian philosophy and a natural scientist in the 16th century). Archiv für die Geschichte der Naturwissenschaft und der Technik, 5 (1913), 183-97, 226-40, 352-63
- Arthur Richter (1876), "Casmann, Otto", Allgemeine Deutsche Biographie (ADB) (in German), 4, Leipzig: Duncker & Humblot, p. 54