World war 1 made people rethink about what it ment to be human, and was the bloodest war. In 1917 the United States joined the allies. After the war crime rose, radio arrived, as well as jazz. In 1929 the stock market crashed causing people to lose jobs, making them find work on huge public projects. During this time period authors wrote about the war and disalusionment. The writtings of these authors tended to be negative, fictional,with themes such as loss and truth is questionable.