The law you seek is the Emancipation Proclamation, but you should google it to see what the strings were that were attached to this bill.
The act that would hurt it the most was the Boston Port Act which shut down Boston's Port so they could no longer trade.
Answer:
An important feature of the US Constitution is its provision for a system of checks and balances explain the purpose and structure of the system of checks and balances and give an example of how it works
The system of checks and balances is an important part of the Constitution. With checks and balances, each of the three branches of government can limit the powers of the others. This way, no one branch becomes too powerful. ... the power of the other branches to make sure that the power is balanced between them.
It made the Quakers and Puritans want to flee and colonize in America to have religious freedom and practice their beliefs.
Sherman would push from Chattanooga to Atlanta to the Atlantic Ocean.
Grant would attack Richmond