Answer:
World War I
Explanation:
Modernism was a philosophical and an art movement that began in the U.S. in the early 20th centuries, following the WW I. This movement was characterized by its rejection of traditional values, techniques, and forms of expression, by its experimentalism and search for new modes of expression, by disillusionment toward WWI and its emphasis on subjectivity, relativism, change, contingency, pragmatism, and diversity.
