Inspiration from the German logician, Cambridge professor, social commentator ( Timeline1 1889 26 April - Ludwig Wittgenstein born and baptised in Vienna 1900: Freud (1856-1939) publishes Interpretation of Dreams, groundbreaking work in psychology 1900: Max Planck on the quantum theory of energy 1903: Wright Brothers test the first airplane (12 second flight, 120 feet) 1903: Otto Weininger (1880-1903) publishes Sex and Character, then commits suicide soon after it is given bad reviews 1902-03: Wittgenstein’s brother, Hans, after having run away from home to pursue a career in music is missing, presumed to have committed suicide 1903: Period during which Wittgenstein has recurring thoughts of his own suicide (finally calming in 1912) 1904: Wittgenstein’s brother, Rudolf, commits suicide 1905: Einstein (1879-1955) published five scientific papers, one of which was ‘Special theory of Relativity’ (time and space as relative to position of the observer) 1906 to Berlin to study engineering 1908 to Manchester to conduct aeronautical research, where he begins reading work of Gottlob Frege (1848-1925) (note: prior to this he had read much by Arthur Schopenhauer, 1899-1860) 1910 first trip to Ireland (Coleraine) 1911 to Cambridge to meet Bertrand Russell (1872-1970) 1912 (January) to Cambridge to study with Russell. Russell recognizes Wittgenstein’s genius, which helps ease Wittgenstein’s recurring idea about committing suicide 1914 volunteers for service in Austrian Army 1918 completes Tractatus Logico-Philosophicus (published 1921-2); decides to become a schoolmaster in an elementary school in Austria 1926 gives up school 1 Some details taken from a timeline devised by Jonathan Rée: http://www.open2.net/historyandthearts/philosophy_ethics/wittgensteinbiography.html teaching 1918 Wittgenstein’s brother, Kurt, commits suicide (after troops under his comman refuse to obey orders). 1929 returns to Cambridge; accepts fellowship at Trinity College 1934 summer holiday in Ireland (Rosroe) 1936 extended stay in Dublin 1938 further extended stay in Dublin 1939 appointed Professor at Cambridge 1947 gives up Cambridge Professorship, decides to move to Ireland and attempt to bring his Philosophical Investigations to completion 1949 leaves Ireland; prostate cancer diagnosed 1951 29 April - dies 1953 publication of Philosophical Investigations 1953 James Watson and Francis Crick's classic paper that first describes the double helical structure of DNA, suggesting ‘a possible copying mechanism for the genetic material’ (Nature, 171, 737-738)