Thank you for posting you question here at brainly. The longest, deepest, and most pervasive depression in American history, lasted from 1929 to 1939. Its effects were felt in virtually all corners of the world, and it is one of the great economic calamities in history.
in the beginning, slavery mostly
The Loom<span> was invented first to increase textile production, and then the gin produced more cotton
hope that helps</span>
