Did you know?
Time since start of building of the Great Pyramid of Cholula (2,250 y) is 2.5 x Time since building of Angkor Wat (903 y)
Tweet this comparison
Distance a kangaroo can jump (13.5 m)
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.