Answer:
Electric power first saw commercial use in the 1870s.
The first astronomer to state the fundamental laws of planetary motion, Kelper was also known for his works in geometry, optics and philosophy.
A. It relied on safe houses run by northern whites and blacks to move slaves to Canada.
They said it was lacking a bill of rights
<span>The Native Americans quickly began to die in huge numbers from diseases imported by the Europeans.
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