Template:Selected anniversaries/January 13
532: The Nika riots begin in Constantinople, with nearly half the city being burned or destroyed and tens of thousands of people killed over the next several days.
1876: Mathematician Erhard Schmidt born. He will make important contributions to functional analysis and modern set theory.
1898: Émile Zola's J'accuse…! exposes the Dreyfus affair.
1902: Mathematician Karl Menger born. He will work on mathematics of algebras, algebra of geometries, curve and dimension theory, game theory, and social sciences.
1906 Jan. 13: Physicist and academic Alexander Stepanovich Popov dies. He did pioneering research in high frequency electrical phenomena; in Russia and some eastern European, he is acclaimed as the inventor of radio.
1924: Physicist and academic Georg Hermann Quincke dies. He conducted prolonged research on the influence of electric forces upon the constants of different forms of matter, modifying the dissociation hypothesis of Clausius.
1977: American rock band and film production company Steely Kubrick begins world tour.