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  • 23-02-2016
  • History
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Black inventors of the 20th century

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Аноним Аноним
  • 24-02-2016
-Dr. George Washington Carver-George Carruthers
-Sarah Breedlove McWilliams Walker
-Jesse Hoagland
-Neil deGrasse Tyson
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Аноним Аноним
  • 24-02-2016
Charles drew is an inventor
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