The year 1929 marked the beginning of the Great Depression (B).
This is considered to be the worst economic crisis in history since the late nineteenth century.
On October 29, 1929, often referred to as Black Tuesday, the stock market crashed. Investors who helped companies develop became afraid they would lose their money and stopped investing. The entire U.S. economy entered a crisis, which spread to the rest of the world and lasted until the mid- to late 1930s. People lost their jobs or their homes, accumulated debt, and the wages became very low.