Did you know?
Time since earliest wheeled vehicles (4,000 y) is 50 x Lifespan of human being (80 y)
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Land used for permanent crops in Slovakia (2011) (100.4 km^2)
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.