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Time since first domestication of cats (10,500 y) is 5 x Time since the birth of Cleopatra (2,090 y)
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Time since first Boeing 747 entering service (52 y)
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.