1929 Birthday Jurgen Habermans, German sociologist, Frankfurter Schule 1927 Death Leonard Nelson, Germany philosopher (Nelson-Friessche Schule), dies at 45 1810 Birthday Ferdinand David, violist/compser, Hohe Schule des Violinspiels 1791 Birthday Carl Czerny, Vienna Austria, pianist/composer, Schule der Virtuosen
