Jan Baudouin de Courtenay

Jan Baudouin de Courtenay
Born
Jan Niecisław Ignacy Baudouin de Courtenay

13 March 1845
Died3 November 1929(1929-11-03) (aged 84)
Philosophical work
Main interestsPhonology
Notable ideasTheory of the phoneme and phonetic alternations
Signature

Jan Niecisław Ignacy Baudouin de Courtenay, also known as Ivan Alexandrovich Baudouin de Courtenay (13 March 1845 – 3 November 1929), was a Polish linguist and Slavist, best known for his theory of the phoneme and phonetic alternations.

For most of his life Baudouin de Courtenay worked at Imperial Russian universities: Kazan (1874–1883), Dorpat (now Estonia) (1883–1893), Kraków (1893–1899) in Austria-Hungary, and St. Petersburg (1900–1918). In 1919–1929 he was a professor at the re-established University of Warsaw in an again independent Poland.