The answer is: Greeks and Roman's.
Answer:
no
Explanation:
im gonna be labeled racist for this but some of them were good in their own right, multiple of our founding fathers (including George Washington himself) had slaves. Do you see people trying to go against the very man that is a huge reason the US exist? so no
Make transportation easier
Hope this helps :)
Rising- think about it as if your inflating a balloon, and when you let air out it deflates
