Gustav Mahler | Gustav Klimt | Gustav Holst | Gustav III of Sweden | Gustav I of Sweden | Theodor Fontane | Gustav Meyrink | Theodor Mommsen | Friedrich Gustav Jakob Henle | Theodor Herzl | Gustav Stresemann | Carl Theodor Dreyer | Gustav Noske | Thomas Theodor Heine | Theodor Boveri | Gustav III | Gustav, Hereditary Prince of Sayn-Wittgenstein-Berleburg | Gustav Fischer | Theodor Meynert | Hurricane Gustav | Gustav Nossal | Gustav Meier | Gustav Hertzberg | Gustav Albrecht, 5th Prince of Sayn-Wittgenstein-Berleburg | Theodor Storm | Theodor Loos | Theodor Leschetizky | Theodor Kittelsen | Theodor Eimer | Johann Gustav Droysen |
:Certain examples that Aristotle attributes to Democritus and Leucippus clearly prefigure it, but its belated inventor is Gustav Theodor Fechner, and its first exponent, Kurd Lasswitz.