Answer:
Middle-class northerners
Explanation:
The middle class of north of US begin to call for abolition.
One of the most famous event was the protest against slavery in Germantown, Pennsylvania.
The group called the Quakers also called friends or friend of church were a christians groups which had involved in abolition of slavery protest.
These events were around 17h century.
The flooding of river valleys created good farmland
Banliang, also known as bronze coins which were later turned into silver coins.
Answer: Banliang
Answer:
it is b. the civil war ended .
it is the communism in the U.S