Postmodernism is distinguished by a questioning of the master narratives that were embraced during the modern period, the most important being the notion that all progress - especially technological - is positive. By rejecting such narratives, postmodernists reject the idea that knowledge or history can be encompassed in totalizing theories, embracing instead the local, the contingent, and the temporary. Other narratives rejected by postmodernists include the idea of artistic development as goal-oriented, the notion that only men are artistic geniuses, and the colonialist assumption that non-white races are inferior. Thus, Feminist art and minority art that challenged canonical ways of thinking are often included under the rubric of postmodernism or seen as representations of it. (http://www.theartstory.org/definition-postmodernism.htm)