File photo taken on Sept. 1, 1956 shows new students Zhang Guifang (L) and Zhang Dayun reading textbooks on their first school day at Hexing Township Primary School in Pixian County, southwest China's Sichuan Province. (Photo/Xinhua)
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File photo taken on Sept. 1, 1956 shows new students Zhang Guifang (L) and Zhang Dayun reading textbooks on their first school day at Hexing Township Primary School in Pixian County, southwest China's Sichuan Province. (Photo/Xinhua)
