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1 Jan 105 Jahr - 改进造纸术

Beschreibung:

汉和帝元兴元年（105年），蔡伦把改进造纸术的成果报告给皇帝，皇帝对蔡伦的才能非常赞赏，并把改进过的造纸技术向各地推广，汉安帝元初元年（114年），朝廷封蔡伦为龙亭侯，所以后来人们都把纸称为“蔡侯纸”。

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3.智人演化

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1 Jan 105 Jahr

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~ 1922 years ago

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