Did you know? Duration of Mali Empire (375 y) is 200 x Period of Mars's orbit (1.88 y)
Diameter of Andromeda (closest large galaxy to the Milky Way) (2.08 quintillion km)
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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.
