Machiavelli lived in the 15th century and is sometimes referred to as the first modern political scientist. He aimed to have a say in the way the leaders of the day governed their subjects. He basically told leaders to do as they please and not to have moral obligations to subjects. He claimed that being a virtuous leader would lead to ruin and his subjects being spoiled.....clearly not good advice.
The stock market crash caused everyone to take the money out of banks, but he banks were running out. the reason for this was because the money left in stocks lost value.
The main objective of the National Origins Act of 1924 was to favor the immigration from Northern and Western Europe. The government did this to tighten the 1921 quota formula for immigration.