Banks often suffered in the 1930s and lost money because they could not

Banks failed in the 1930's because when the stock market crashed in 1929, they had lost thousands of dollars. You see, the banks had invested their customer's money in the stock market and lost it all when it crashed. Then, people came looking for their money to pay off their own debt, but the banks couldn't because they themselves did not have any money. So banks often suffered because they were in debt.

The US became more cultural opened, and there were more cultures in the US

The US afterall, is known as the country of immigrants. Almost all of us have immigranted here or had ancestors that did

hope this helps