Jules Verne sent Phileas Fogg around the world in 80 days, but how far is that anyway? How fast would he have had to travel? How long would it take today to go around the world?
http://www.andrewcaelliott.com/explorations/2017/3/21/around-the-world-in-how-long
If you’re looking for numbers on Covid-19, a very good choice is to head over to OurWorldInData.com. Good numbers, good analysis, good visualisations and good interactive tools for exploring the numbers.
Oh, and they cover MUCH more than just Covid-19. Highly recommended.
This graphic, from OurWorldInData.org (always highly recommended) shows, for a series of census years from 1851 to (projected) 2031, how many people would survive to each age in England and Wales. Things to note: the terrible effect of child mortality until 1961, and the fact that if you survived childhood, you had a significant chance of living to 60, 70, 80, even in the 19th century.
https://ourworldindata.org/life-expectancy-how-is-it-calculated-and-how-should-it-be-interpreted/