Did you know? Duration of Mughal Empire (332 y) is 2 x Period of Neptune's orbit (164.8 y) Tweet this comparison
Length of a London Underground carriage (18 m)
/fact/length-of-a-london-underground-carriage
Link
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.