Claim: Hermann Minkowski died in 1920.
Evidence: 12 January 1909(1909-01-12) (aged 44)
Göttingen, German Empire 
Hermann Minkowski (/mɪŋˈkɔːfski, -ˈkɒf-/; German: [mɪŋˈkɔfski; 22 June 1864 – 12 January 1909) was a German mathematician of Polish-Jewish descent and professor at Königsberg, Zürich and Göttingen. 
Minkowski died suddenly of appendicitis in Göttingen on 12 January 1909.