Folk-music should be the answer
as "We shall overcome" Joan Baez.....
In 1950 it was 9% but increased to about 90% towards the end of the 1950’s sorry if this does not help
The first, the multiregional hypothesis suggests that humans evolved from Homo erectus outside of Africa. ... The second hypothesis, or the African replacement hypothesis, suggests that Homo sapiens left Africa and then inhabited the rest of the Old World, replacing primitive humans that had already left Africa.
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The limits that artifacts on American civilizations pre-1600 have as historical sources are that the artifacts found in different locations cannot definitely establish a conclusion about the location of the Native American tribes or the type of society they lived in.
hope this helps!
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