DNA/RNA. Every one of contributes.
measurements
Cleopatra's greatest contribution to mankind was probably that adaptation of the first calendar. She also raised education standards for students.
The wheel and internet
I Guess It's Charity
The wheel is the greatest invention ever with out it we would have never had wars and some people wouldn't have died and you might not be born.
The greatest invention ever built by mankind was probably the electric wire system that allowed us to invent further technology like computers.
The printing press was probably the greatest invention because it allowed people to share their ideas with others. The internet does the same thing but on a global scale. It lets people from different countries in the world to work together on the same project. It will greatly advance technology and for this reason it is man's greatest invention.
i think its the tv or bra
she suck
There are a lot of things that could be done to help mankind. The invention of airplanes was a great achievement that has changed mankind.
Probably the pulley amongst the simple machines is having the greatest impact on mankind.
In production of matches and raw material