Günther Jacoby (21.Apr.1881)
Immanuel Kant (22.Apr.1724)
Giorgio Agamben (22.Apr.1942)
Johann Karl Friedrich Rosenkranz (23.Apr.1805)
Francesco Patrizi da Cherso (25.Apr.1529)
Ludwig Wittgenstein (26.Apr.1889)
Leo Kofler (26.Apr.1907)
Herbert Spencer (27.Apr.1820)
Alois Riehl (27.Apr.1844)
Hermann Mörchen (27.Apr.1906)
Paul Janet (30.Apr.1823)
Alexander Tille (30.Apr.1866)
Leopold Ziegler (30.Apr.1881)
Wassili Wassiljewitsch Rosanow (02.Mai.1856)
August Ludwig Hülsen (03.Mai.1765)
Roberto Agramonte (03.Mai.1904)
Johann Friedrich Herbart (04.Mai.1776)
William Kingdon Clifford (04.Mai.1845)
Josef Pieper (04.Mai.1904)
Karel Berka (04.Mai.1923)
Søren Kierkegaard (05.Mai.1813)
Karl Marx (05.Mai.1818)
Hermann Josef Schmidt (05.Mai.1939)
Karl Christian Friedrich Krause (06.Mai.1781)
David Hume (07.Mai.1711)
Bernhard von Mutius (07.Mai.1949)
José Ortega y Gasset (09.Mai.1883)
Rüdiger Bubner (09.Mai.1941)
Hans Jonas (10.Mai.1903)
Manfred Riedel (10.Mai.1936)
Wilhelm Windelband (11.Mai.1848)
Johannes Maria Verweyen (11.Mai.1883)
Jiddu Krishnamurti (12.Mai.1895)
Jean Cavaillès (15.Mai.1903)
Adolf Grünbaum (15.Mai.1923)
Nathan Birnbaum (16.Mai.1864)
Walter Hollitscher (16.Mai.1911)
Hermann Schmitz (16.Mai.1928)
Friedrich Schorlemmer (16.Mai.1944)
Rudolf Carnap (18.Mai.1891)
Nicolás Gómez Dávila (18.Mai.1913)
Johann Ludwig Alefeld (19.Mai.1695)
Johann Gottlieb Fichte (19.Mai.1762)
John Stuart Mill (20.Mai.1806)
Wilfrid Sellars (20.Mai.1912)
Helene von Druskowitz (02.Mai.1856)