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Y_Kistochka [10]
3 years ago
6

What scientific breakthroughs did African Americans make

History
1 answer:
zalisa [80]3 years ago
8 0

The Three-Light Traffic Light, Invented by Garrett Morgan in 1923. With only an elementary school education, black inventor (and son of a slave), Garrett Morgan came up with several significant inventions, including an improved sewing machine and the gas mask.

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Working on behalf of white settlers who wanted to grow cotton on the Indians' land, the federal government forced them to leave their homelands and walk thousands of miles to a specially designated “Indian territory” across the Mississippi River. Resulted from the enforcement of the Treaty of New Echota, an agreement signed under the provisions of the Indian Removal Act of 1830, which exchanged Indian land in the East for lands west of the Mississippi River, but which was never accepted by the elected tribal leadership

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zmey [24]

Hi!

I have the answer you're looking for. I just went over this in History.


The Tenth Amendment was added to the Constitution of 1787 largely because of the intellectual influence and personal persistence of the Anti-Federalists and their allies. It's quite clear that the Tenth Amendment was written to emphasize the limited nature of the powers delegated to the federal government.


Hope this helps!


~Courtney

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