Did you know? Galactic Year (period of rotation of the Milky Way galaxy) (225 million y) is 200 thousand x Duration of Byzantine Empire (1,123 y) Tweet this comparison
Pop. of Beijing, China (21.52 million people)
/fact/population-of-beijing-china
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.