1952年，应联合国教科文组织之请，他撰写了《种
与历史》一文，该文后来成为反种
文献的经典。
In 1952, on the request of UNESCO, he wrote Race and History, which was to become a classic of antiracist literature.
者1952年，应联合国教科文组织之请，他撰写了《种与历史》一文，该文后来成为反种文献的经典。
In 1952, on the request of UNESCO, he wrote Race and History, which was to become a classic of antiracist literature.
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