B. Trail of tears
From 1831-1850 Native Americans were forced, by the government, from their ancestral homelands in the Southeastern US to to designated areas in the Western plains. Many of the Native Americans died on the journey from starvation, disease and exposure. Some of the tribes forced to relocate were the Seminole, Cherokee, Chickasaw and Ponca.
Answer:
you forgot to press send or the person sending it service was bad
Explanation:
Standard measuring and writing systems helped unite people under the Qin dynasty because everyone had to use these systems.
To your first question--James Madison is widely known as the architect of the US Constitution (Although in reality it was the result of team work by 56 delegates).
To your second question--The six key principles outlined in the US Constitution are:
1. Popular Sovereignty (i.e. democracy or rule by the people)
2. Limited Government (i.e. again, democracy or the government can only do what the people instructs it to do)
3. Separation of Powers (there are three branches of power: legislative, executive, and judicial AND they are separate from each other)
Which brings me to...
4. Checks and Balances (each branch "checks and balances" the other two branches' power. For ex: the US President can veto congressional bills, Congress can ratifies judicial nominees, and the Supreme Court decides on the constitutionality of congressional bills).
5. Judicial Reviews (the judicial branch reviews governmental actions)
6. Federalism (there is a federal and a state government. These are separate from each other)
