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Answer:
One hundred years later (after the end of slavery), the Negro lives on a lonely island of poverty in the midst of a vast ocean of material prosperity. ... “ They were separated from the rest of society because of how poor they were (and, as King says in a previous sentence, because of racial discrimination).
Explanation:
They could have used a hammer with the label progress, and the nail could be labeled opposition.
It was the invention of the cotton gin.