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Watch as the world's cities rise and fall over 6,000 years – video

Recent research, published in the journal Scientific Nature Data, transcribed and geocoded nearly 6,000 years (from 3700BC to AD2000) of human population data. The report provides a gargantuan resource for scholars hoping to better understand how and why cities rise and fall – and allowed blogger Max Galka to map the changes on a his site Metrocosm. The rise and fall of great world cities: 5,700 years of urbanisation – mapped

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