In the United States, the second half of the 20th century brought about historical socio-political movements that revolutionized American culture. Following the end of World War II in 1945, the U.S. entered a new era, experiencing a sharp growth in population, a successful economy, and an increased standard of living. By the late 1950s, a sense of uniformity spread through American society, leading to the rise of several progressive movements looking to break away from this conformity.
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