Otto von Bismarck | Friedrich Nietzsche | Carl Sagan | Carl Jung | Friedrich Schiller | Carl Orff | Carl Maria von Weber | Carl Lewis | Carl Zeiss AG | Carl Linnaeus | Carl Sandburg | Friedrich Engels | Carl XVI Gustaf of Sweden | Carl Levin | Otto | Carl Zeiss | Carl Michael Bellman | Carl Friedrich Gauss | Karl Friedrich Schinkel | Friedrich Dürrenmatt | Carl Froch | Otto III | Otto Piene | Otto I, Holy Roman Emperor | Otto I | Friedrich Hayek | Caspar David Friedrich | Carl Perkins | Carl von Clausewitz | Carl Reiner |
From 1882 to 1887 he studied medicine at the University of Moscow, and afterwards worked and studied at the laboratory of Theodor Meynert (1833-1892) in Vienna, the laboratory of Paul Flechsig (1847-1929) in Leipzig, Carl Westphal's clinic in Berlin, and at the Salpêtrière in the clinic of Jean-Martin Charcot (1825-1893).