The was the worst economic slump ever in U.S. history, and one which spread to virtually all of the industrialized world. The depression began in late 1929 and lasted for about a decade. Many factors played a role in bringing about the depression; however, the main cause for the was the combination of the greatly unequal distribution of wealth throughout the 1920's, and the extensive stockmarket speculation that took place during the latter part that same decade. The lack of distribution of wealth in the 1920's existed on many levels. Money ....