Chongqing, Cairo plan to pursue joint UNESCO recognition

Updated: Oct 14, 2024 By Deng Rui and Tan Yingzi chinadaily.com.cn Print

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An academic symposium centered on the heritage value, conservation and inheritance of Baiheliang in China's Chongqing and Raoudha Nilometer in Egypt's Cairo is held in Chongqing's Fuling district on Oct 12. [Photo by He Qianjian/For chinadaily.com.cn]

Baiheliang, or the White Crane Ridge, is a giant stone ridge located in the upper reaches of the Yangtze River (Fuling section). The ancient Chinese used stone-carved fish images as measuring tools and inscriptions as written records to monitor and document water levels. The site, used from 763 AD to 1963, is believed to be the world's most ancient hydrographic survey station.

The nilometer is an Egyptian invention designed to gauge the water levels of the Nile River. The Raoudha Nilometer in Cairo, constructed in 715 AD, stands as a prominent example of this technology.

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