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Height of Mount Kilimanjaro (5.89 km) is 20 thousand x Height of a standard Barbie doll (292 mm)
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Duration of Bruneian Empire (Bornean) (1,288 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.