A man visits an exhibition of inscription rubbings of Tang Dynasty (618-907 AD) in Shijiazhuang, north China's Hebei Province, Dec. 6, 2020. The exhibition kicked off in Hebei Library on Sunday, displaying over 30 exhibits. (Xinhua/Mu Yu)

People visit an exhibition of inscription rubbings of Tang Dynasty (618-907 AD) in Shijiazhuang, north China's Hebei Province, Dec. 6, 2020. The exhibition kicked off in Hebei Library on Sunday, displaying over 30 exhibits. (Xinhua/Mu Yu)

People visit an exhibition of inscription rubbings of Tang Dynasty (618-907 AD) in Shijiazhuang, north China's Hebei Province, Dec. 6, 2020. The exhibition kicked off in Hebei Library on Sunday, displaying over 30 exhibits. (Xinhua/Mu Yu)

People visit an exhibition of inscription rubbings of Tang Dynasty (618-907 AD) in Shijiazhuang, north China's Hebei Province, Dec. 6, 2020. The exhibition kicked off in Hebei Library on Sunday, displaying over 30 exhibits. (Xinhua/Mu Yu)