1951 4th Award for coloured graphic arts, Award for graphic arts of the olympic committee
1952-1955 Medellín (Columbia); yourneys to Ecuador, Venezuela, Mexiko and Yucatán
1953 participation in the exhibition of the artist group "ZEN 49"
1955 return to Germany; participation in the exhibition "Peintures et sculptures non-figuratives en Allemagne d'aujourd'hui", Cercle Volney, Paris
1956/56 visiting lecturer at the Akademie der Bildenden Kuenste, Berlin
1957-1980 Professor at the Akademie der Bildenden Kuenste, Berlin
1959 participation in the "documenta II", Kassel
1960 Award of the town of Darmstadt
1962 big art award of the land North Rhine-Westfalia
1964 participation in the "documenta III", Kassel
1966 art award of the Town of Berlin
1967 art award of the town of Cologne
since 1967 studio in Toscana, Italy
1972 realization of the big ceiling fresco in the castle Charlottenburg, Berlin; move to Mechernich-Vollem (Eifel)
1977/80 preparation and realization of the ceiling fresco in the city hall of Cologne
1984 ceiling fresco in the dining hall of the residence of the ambassador of the federal republic of Germany at the Holy See in Rome; supraporte in the temporarily parliament ("Wasserwerk"), Bonn
1985/86 big wall fresco for the new Wallraf-Richartz-Museum/Museum Ludwig, Cologne
1989 Verdienstkreuz (highest decoration awarded for military or other service) of the land North Rhine-Westfalia
1989/90 wall fresco for the re-opened Von-der-Heydt-Museum in Wuppertal
1999 died in Castiglione della Pescaia, Italy
During the 50's Hann Trier began to paint in the style he maintained through his whole later work: Holding in each hand a brush, he led them across the picture's surface in his so-called "choreographic brushstrokes" corresponding to each other at the same time. By these means he emphasized the process of painting and created arabesque-like soul landscapes with mostly honeycombed structures and harmonious color processes.