The Great Depression (1929-1939) was triggered by the stock market crash and characterized by significant economic weaknesses including unequal wealth distribution and poor bank and corporate structures. President Herbert Hoover's lack of action contributed to widespread poverty, with many families facing homelessness and unemployment, while cities saw the emergence of shantytowns known as 'Hoovervilles.' The situation deteriorated as businesses closed, farms foreclosed, and people struggled to afford basic necessities.