Answer:
The Spanish campaign against the Aztec Empire had its final victory on 13 August 1521, when a coalition army of Spanish forces and native Tlaxcalan warriors led by Cortés and Xicotencatl the Younger captured the emperor Cuauhtemoc and Tenochtitlan, the capital of the Aztec Empire.
Explanation:
It frees black slaves in the South. "All persons held as slaves within the rebrllious states are and hencefowars shall be free." It dosent however free existing slaves in the north, that happens 2 years later. In December 1865 the thirteenth amendment was ratified finally ending slavery in the United States.
I think the answer is B. On the map the Canadian shield surrounding Hudson Bay seems to be the largest geographical region in Canada.
One reason is it helped promote exploration.
Another is communication was faster.
And people learned more about exploration.