It was the "Smoot–Hawley Tariff Act" that was a disaster because when European nations responded with tariffs on American goods global trade plunged by roughly two thirds
<span> from 1929 levels.</span> This was viewed as exacerbating the Great Depression.
Humanism put the focus on people, and not the religious beliefs of them, this heavily influenced the Renaissance, as people allowed themselves to do more things. They now did things for themselves, and not because their religion required them to. This can be seen in the changes that were made, such as art becoming more popular, and inventions that made it easier for people to live and work.
Http://www.123helpme.com/american-geographys-role-in-the-industrial-revoultion-view.asp?id=156941
Over production of goods caused prices/stocks to fall after ww1 leading up to the great depression.
