Did you know? Lifespan of human being (80 y) is about as big as Time since introduction of the first mass-produced helicopter (Sikorsky R-4) (80 y)
Land used for agriculture in Mauritania (2018) (397,000 km^2)
/fact/land-used-for-agriculture-in-mauritania
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.