1989 Death Alfred J Ayer, English philosopher (Logical Positivism), dies 1979 Event "Logical Song" by Supertramp peaks at #6 1939 Birthday Tom Johnson, born in Greely, Colorado, composer, minimalist style, new music critic for the Village Voice, wrote music based on tiling, involving mathematical and logical processes 1905 Birthday Carl Gustav Hempel, German Logical Positivist philosopher 1891 Birthday Rudolf Carnap, philosopher, German Logical Positivist