Did you know? Height of the Great Sphinx of Giza (20.21 m) is 4 x Women's World Pole Vault record (5.06 m)
Time since the birth of Hero of Alexandria (2,014 y)
/fact/time-since-the-birth-of-hero-of-alexandria
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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.