March 10 1876. it was made by alxander graham bell with his assistant thomas
In my opinion, it has made a very “us versus them” look on both sides of the spectrum.
Driven in part by economic concerns, and in part by frustration with the straitened social conditions of the South, in the 1870s African Americans began moving North and West in great numbers. In the 1890s, the number of African Americans moving to the Northeast and the Midwest was double that of the previous decade.
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Explanation:
A.It led to humans eating more varied diets.
