Did you know? Height of Sydney Harbour Bridge (134 m) is 200 x Height of BB-8 droid in Star Wars movies (670 mm) Tweet this comparison
Age of the earliest cave paintings (35,000 y)
/fact/age-of-the-earliest-cave-paintings
Link
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.