1898   born in Königsberg
1924 - 1926   Studied typography and applied graphics at the Städelschule in Frankfurt/M. Subsequently teacher of applied graphics at the Städtische Handelsschule in Frankfurt/M.
1930   works as a freelance artist in Berlin, friendship with Wassily Kandinsky
1933   Closing of the exhibition with Josef Albers in Braunschweig, exhibition ban, continues to paint abstract pictures in secret
1936   Denunciation leads to imprisonment in Dachau concentration camp
1949   Co-founder of the artist group "ZEN 49" in Munich with Willi Baumeister, Brigitte Matschinsky-Denninghoff, among others
1954   Guest professorship at the University of Fine Arts Hamburg
1956 - 1973   Teaching at Munich Community College
1957   Art Prize of the City of Munich as one of the most important representatives of non-figurative painting in Germany
1979   dies in Munich