The answer to this is African Americans.
Back around World War II they mostly pay attention to the war so the whole racism left African Americans alone because around that time they didn't quite care for that too much because they mostly want to keep on the whole war thing. Around that time the U.S was just about getting ready to get involved.
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Sorry I just need points sorry sorry sorry so the answer is c
Answer:
Preservation
Explanation:
They preserved much classical text(Not their own but Roman and Greek). They introduced the Arabic number system
The first expedition to sail around the world was led by <span>Ferdinand Magellan.</span>