The Great Depression is a sad era in United States history. The Great Depression was a massive economic depression. It has affected the lives of many people in the United States. People's lifestyles changed dramatically during the Great Depression. There were many factors that caused the Great Depression. The stock market crash of 1929 is a major cause of the Great Depression. Before the stock market crash many people bought on margin, which caused a major imbalance in the stock market, which led to the crash. Many people had invested heavily in the stock market in the 1920s. All these people who invested in the stock market lost all the money they had, because they relied so much on the stock market. The stock market crash also played a more physiological role in causing the Great Depression. More and more companies have become aware of the difficulties that have led companies not to expand and start new projects. This has caused job insecurity and uncertainty in employee incomes. The crash has also been used as a symbol of changing times. The crash brought the American people...