Photograph shows two white men overseeing African American men hammering boulders as others walk with wheelbarrows in a shallow pit phosphate mine, Dunnellon, Florida, 1890. (Library of Congress via AP)
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Photograph shows two white men overseeing African American men hammering boulders as others walk with wheelbarrows in a shallow pit phosphate mine, Dunnellon, Florida, 1890. (Library of Congress via AP)
