Here is something really cool I stumbled upon today.
Apparently, ancient Greeks couldn't see the color blue. And neither did any other old civilizations! Well, short of.
It's been a while since I have seen something so interesting. Enjoy:
On an off topic side note, it's good to see a video this days that get straight to the point instead of dragging a simple answer for hours and hours just to suck up on the YouTube algorithm!
Posted with STEMGeeks