Did you know? Circumference of Earth's Moon (10,920 km) is 2.5 x Length of the Mekong River (4,350 km)
Time since the birth of Aristotle (2,400 y)
/fact/time-since-the-birth-of-aristotle
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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.