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Pop. of Changsha, China (7.04 million people) is 2 x Pop. of Rawalpindi, Pakistan (3.51 million people)
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Duration of Carthaginian Empire (504 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.