The black-and-white photo shows the ruined Tangshan after the quake on July 28, 1976, while the colored picture exhibits the night scene at the earthquake monument square in Tangshan city on July 23, 2016. (Photo/Xinhua)
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The black-and-white photo shows the ruined Tangshan after the quake on July 28, 1976, while the colored picture exhibits the night scene at the earthquake monument square in Tangshan city on July 23, 2016. (Photo/Xinhua)
