Tiedemann in 1820
23 August 1781|
(now Kassel, Hesse, Germany)
|Died||22 January 1861
|Doctoral advisor||Johann Wilhelm Christian Brühl|
|Other academic advisors||Conrad Moench
Georg Wilhelm Stein
Adalbert Friedrich Marcus
Karl Kaspar von Siebold
Franz Kaspar Hesselbach
|Influences||Friedrich Wilhelm Joseph Schelling
Samuel Thomas von Sömmerring
Tiedemann spent most of his life as professor of anatomy and physiology at Heidelberg, a position to which he was appointed in 1816, after having filled the chair of anatomy and zoology for ten years at Landshut, and died at Munich. He was elected member of the Royal Swedish Academy of Sciences in 1827.
Early life and education
Tiedemann was born at Cassel, the eldest son of Dietrich Tiedemann (1748–1803), a philosopher and psychologist of considerable repute. He graduated in medicine at Marburg in 1804, but soon abandoned practice.
Tiedemann devoted himself to the study of natural science, and, upon moving to Paris, France, became an ardent follower of Georges Cuvier. On his return to Germany he maintained the claims of patient and sober anatomical research against the prevalent speculations of the school of Lorenz Oken, whose foremost antagonist he was long reckoned. His remarkable studies of the development of the human brain, as correlated with his father's studies on the development of intelligence, deserve mention.
Tiedemann was one of the first persons to make a scientific contestation of racism. In his article entitled "On the Brain of the Negro, compared with that of the European and the Orang-outang" (1836), he argued based on craniometric and brain measures taken by him from Europeans and black men from different parts of the world that the then-common European belief that Negroes have smaller brains and are thus intellectually inferior is scientifically unfounded and based merely on the prejudice of travelers and explorers.
Tiedemann was influenced by Jean-Baptiste Lamarck and accepted the transmutation of species. Science historian Robert J. Richards has written that Tiedemann "joined the basic notion of species evolution, of a Lamarckian flavor, with the proposition that higher animals in their embryological development recapitulated the morphological stages of those lower in the scale."
In 2007, Brazilian geneticist Sergio Pena called Tiedemann an "anti-racist ahead of his time".
- Neurotree profile Friedrich Tiedemann
- Chisholm 1911.
- Tiedemann, Friedrich (1836). "On the Brain of the Negro, compared with that of the european and the orang-outang" (PDF). Phil. Trans 126.
- "Friedrich Tiedemann (1781 - 1861)". Royal Netherlands Academy of Arts and Sciences. Retrieved 20 July 2015.
- Ruse, Michael; Travis, Joseph. (2009). Evolution: The First Four Billion Years. Belknap Press. p. 442. ISBN 978-0674062214
- Richards, Robert J. (2008). The Tragic Sense of Life: Ernst Haeckel and the Struggle over Evolutionary Thought. University Of Chicago Press. p. 466. ISBN 978-0226712161
- Koenig, Robert. (2009). The Fourth Horseman: The Tragedy of Anton Dilger and the Birth of Biological Terrorism. Tantor Media. p. 21. ISBN 978-1400153503
- Pena, Sergio (2007). "Um anti-racista à frente de seu tempo". Ciencia Hoje. Instituto Ciencia Hoje. Retrieved April 6, 2013.
Um anti-racista à frente de seu tempo