Today, Cai Lun is considered a national hero in China.

今天，蔡伦在中国被视为民族英雄。

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This all changed, thanks to an man named Cai Lun.

幸得一个叫蔡伦的人，这一切都改变了。

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1,900 years ago, Cai Lun improved the paper-making process.

1900年前，蔡伦改进了造纸工艺。

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Look at CACI International (nyse: CAI - news - people ), which has dropped 21% in that time period, or SRA International (nyse: SRX - news - people ), down 25%.

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Mathaf, billed as an Arab museum of modern art, had Chinese artist Cai Guo-Qiang as the centerpiece of its first major solo show.

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Men in hard hats are the only eyewitnesses when Cai Guo-Qiang lights his massive gunpowder portrait of the founding director of Ghent's contemporary art museum where this event takes place.

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