Answer:
The "thin blue line" is a term that typically refers to the concept of the police as the line which keeps society from descending into violent chaos. The "blue" in "thin blue line" refers to the blue color of the uniforms of many police departments.
i dont know it has something to do with our decaying society
That would be the textile industry
The U.S government set out to dispossess the Native Americans of their remaining rich lands and drive them westward.
Long explanation: Marshall's ruling established the precedent of judicial review by which the Supreme Court has the final say on whether a law is constitutional or unconstitutional.
Short and simple Explanation: John Marshall established judicial review through it. The judicial review that was created allows a better system of checks and balances for the other branches of government to ensure that all actions are constitutional.
Most immigrants that travel through angel island were from China japan etc (Asian countries )