Vincent Van Gogh is seen as the most important forerunner of Expressionism. His reliance on emotion to express color and line can be found in almost all Expressionist works. Van Gogh exaggerated nature "to express man's terrible passions."
Expressionism was the dominant force in German art for the early part of the 20th Century. This influence made Expressionism a very German movement in many ways. With the exception of Norwegian Edvard Munch, the primary Expressionist artists, August Macke, Lyonel Feininger, Max Beckmann, Otto Dix, George Grosz, Ernst Ludwig Kirchner, Emil Nolde, and Max Pechstein were all German. Wassily Kandinsky, a Russian, embraced Expressionism during his years in Germany and helped to found the famed Expressionist Blaue Reiter (Blue Rider) Group which is often seen as the high point of German Expressionism.