Did you know? Length of Africa (North to South) (8,000 km) is 2 x Width of Australia (4,000 km)
Pop. of Chennai, India (4.79 million people)
/fact/population-of-chennai-india
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.