撒哈拉沙漠虽然干燥，但却是一个高度多样化的地区，自公元前10000年以来经历了重大的气候变化。

The Sahara is a highly diverse, albeit dry, region that has undergone major climatic changes since 10,000 B.C.

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这个故事最早的版本之一来自公元九世纪的中国。

One of the earliest versions of the story comes from ninth century China.

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丝绸也不例外，而且，自公元2世纪以来，丝绸工人已经制造了丝绸纸张。

Silk was no exception, and silk workers had been making paper since the 2nd century BCE.

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