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Pop. of Guangzhou, China (12.7 million people) is 2.5 x Number of articles in Wikipedia (Apr 2016) (5.12million )
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Age of the earliest city (6,500 y)
If this was a standard unit ...
Yes, there's now a book based on these numbers. Oxford University Press: July 2018.
Click here to learn more about it.
Click here for Podcast: Andrew Elliott interviewed for New Books Network.