1922
Born on the 30th of November in Düsseldorf, grew up in Berlin
1946-47
Studied in the masterclass of Richard Scheibe at the Berlin Academy of Fine Arts (Hochschule für Bildende Künste)
1947
Move to Düsseldorf; Independent sculptor
1953
First solo exhibition, at Galerie Ophir in Munich
1954
Stay in England and Scotland as a guest of the British Council
1955
Development of ‘water forms’
1956
Notation of the ‘Forms of Water’ exposé with John Anthony Thwaites
Creates the first ‘flat track’ (Flächenbahn) works
1958
Prize of the Graham Foundation for Advanced Studies in the Fine Arts, Chicago
1959
Cooperation with Walter Gropius (water configurations for the new university complex in Baghdad); Trip to Mexico
1963
Major Sculpture Award of the federal state of North Rhine-Westphalia
1964
Professorship at the Art Academy (Staatliche Kunstakademie) in Stuttgart
1971
Wilhelm Lehmbruck Prize awarded by the city of Duisburg
1972
Trip to Egypt (research of optical phenomena at the Giza pyramids)
1972-81
Director of the Art Academy (Staatliche Kunstakademie) in Düsseldorf
1984
Dies on the 28th of June in Düsseldorf