The discovery of lots of bronze items is what is significant about the Shang.
The Chinampas were man made
Because of widespread fear of a strong central government at the time they were written and strong loyalties among Americans to their own state as opposed to any national government during the American Revolution, the Articles of Confederation purposely kept the national government as weak as possible and the states as independent as possible. However, this led to many of the problems that became apparent once the Articles took effect.
The Civil War influenced the role of government in the United States because it highlighted how the national government was the sovereign power. Following efforts by states to succeed and establish their own system of government the national government of the U.S. asserted is dominance and defeated the southern belligerents, thereby reasserting its dominance over politics and government in the United States following the war.
Im not sure but i think it would be c