Did you know?
Length of the Rhine River (1,233 km) is 4 x Length of the British Grand Prix Formula 1 motor race (306.3 km)
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Land used for arable in Guatemala (2011) (310 km^2)
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.