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AIzaSyB4mHJ5NPEv-XzF7P6NDYXjlkCWaeKw5bc
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31 dic 1939 año - In 1940 black human computers were allowed to start work and NACA, soon to become NASA.
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Grace Phelps
18 nov 2018
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fecha:
31 dic 1939 año
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~ 85 years ago
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