Abstract Expressionism is an important movement in modern art which emerged in the United States in the 1940s and 1950s. This movement is characterized by its emphasis on spontaneous, automatic, and gestural painting techniques. It was often seen as a response to the trauma of World War II and the need to create new forms of artistic expression in a rapidly changing world.
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https://www.youtube.com/watch?v=AleANMzlkyM