Did you know:
Time since the start of the formation of the Solar System (4.6 b y) is 200 x Time since the end of the Paleogene geologic period (23 m y)
Tweet this comparison
If you appreciate this site, do us a favour and click on the ad above. We'll earn a penny or two and that will help us keep going.
You'll know that you have done a good thing for numeracy and rationality in the world!