China / China

Costly lesson in authentic history

(chinadaily.com.cn) Updated: 2012-02-28 19:42
Costly lesson in authentic history

A teacher speaks about a duplicate of world's first seismograph invented in 132 AD by Chinese scientist Zhang Heng at a middle school in Weifang, East China's Shandong province, Feb 27, 2012. [Photo/Asianewsphoto]

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