Great Depression: A severe economic downturn that lasted from 1929 to the late 1930s, characterized by high unemployment rates, bank failures, and widespread poverty.
Commercial Bank: A financial institution that accepts deposits from individuals and businesses and provides services such as loans, checking accounts, and savings accounts.
Investment Bank: A financial institution that assists companies in raising capital through underwriting securities (like stocks or bonds) and providing advisory services for mergers, acquisitions, and other financial transactions.