The four outstanding twentieth century playwrights were Lillian Hellman, Arthur Miller, Clifford Odets, and Thornton Wilder.<span>
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The Progressive Movement was a combo of a variety of ideas and activities of reformist groups, it lasted from 1890 to 1920 and covered social reform issues such as female suffrage, education, working conditions, unionization, urbanization, industrialization and child labor. Political reforms were also included, they fought corruption, bribery and the regulation of Big Business and corporations. The first regulatory commissions were established, they created licenses for professionals like pharmacists, veterinarians, and undertakers.
Hitler's invasion of Poland in 1939 also known as the September Campaign.
