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GDP in Syria (2013) (61.9 billion USD p/a) is 20 x GDP in Central African Republic (2015) (3.108 billion USD p/a)
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Time since the birth of Eratosthenes (2,296 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.