Why are the 1920s called the Roaring Twenties?

It seems to me the 1920s was an era of rapid growth in the American economy, with massive industrial employment growth. There was plenty of work in those years. There were many more people on the job than there ever were in the 19th century. (In the 19th century, the average American was a small man in his early 40s, though he never retired – a characteristic that is gone today). In those years, the average citizen worked three times as long as he is now. (That figure now is seven times). It was the best decade an American had ever known. There was no inflation and people were working longer and harder because they saw the opportunity to expand their lives economically. The 1920s lasted through most of the period. When the 1930s appeared, the depression was over. Unemployment soared again – but not nearly as fast as it had been the decade before. The government, which was trying to prevent economic catastrophe, was not doing a good job. Businessmen, however, were not helping the government get it done and were not having enough interest in the economy. The depression was worse than it had been in years, so they went right back to business as usual, making and using less and more of what is good. By and large, the middle class, once relatively well off, was not happy. There were still plenty of jobs in the factories but the people they hired were not working the most they had ever worked in their lives and were not getting what they deserved for their efforts. This was the Depression, not the Great Depression. It had lasted more time and more people than the Great Depression before, but it was an era of severe financial distress that is generally referred to simply as the “Great Depression.” The Depression was brought back as a term in the aftermath of the Second World War, though its original meaning was limited to its economic and social impacts. This is partly for historical purposes but also because it is a label that is easily tied to a certain theme. Some would say the Depression is not all about the economic factors. For instance, the Great Depression began in the United States where a large part of the nation has been suffering from bad health and has come after years of a relatively good economic recovery in much of the developed world. The economic factors are indeed important but cannot be the predominant reason for the severe depression. In the 1920s and 1930s, there was no World War. There was a great deal of turmoil in the world in those years, but there was no war – not even on