Short answers, pulled from the story.
The Die Brücke group formed in 1905 in Dresden, Germany. Four young German artists including Ernst Ludwig Kirchner, Erich Heckel, Karl Schmidt-Rottluff, and Fritz Bleyl gathered to create this collective.
Wassily Kandinsky, Franz Marc, August Macke, and Gabriele Münter founded Der Blaue Reiter in 1911 in Munich. The group lasted until 1912 and sought to liberate color and form from representational art constraints.
Oskar Kokoschka premiered Murderer, The Hope of Women in 1909 as the first expressionist drama. This playlet featured mythic types and brutal actions to reflect the movement's themes.
The term expressionism was applied to music in 1918 under the leadership of Arnold Schoenberg, Anton Webern, and Alban Berg. Their work used dissonance to convey powerful feelings and mirror the psychological turmoil of the early twentieth century.
The Nazi regime labeled expressionism as degenerate art in 1937 during the Munich exhibition of Entartete Kunst. This event forced many artists to flee Germany and scattered the movement across the globe.
Expressionist architecture began to be re-evaluated more positively during the 1970s after decades of dismissal by critics like Sigfried Giedion. This shift recognized buildings as vessels of feeling rather than mere shelters.