In common law legal systems, precedent is a principle or rule established in a previous legal case that is either binding on or persuasive for a court or other tribunal when deciding subsequent cases with similar issues or facts.
In 1913, President Woodrow Wilson signed the Federal Reserve Act which created the Federal Reserve Bank of the United States which would monitor and regulate the Dollar.
Because they knew that Germans could sink any ship they want. They could sink civilian ships. Back then, the only way to travel long distances was by boat, because passenger airplanes had not been invented. The Germans could now sink them if they wanted to travel somewhere, so they either risk their life or not go on trips.
nullification rather than support secession
What happened after the collapse of the Ming Dynasty were:
1) there were natural disasters, war and rebellions.
2) earthquakes.
3) war against the Japanese.
4) unusually dry and cold weather.
5) plague
6) misrule
7) money crisis
8) rebellion from Li Zicheng's troops.