The American dream.
Justin Bieber
In my opinion, electricity
The greatest invention ever built by mankind was probably the electric wire system that allowed us to invent further technology like computers.
Its sliced bread apparently.
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.
microwave
Many would say yes indeed. :)
It was certainly one important invention, but not the only one.
Tom Brokaw of coarse
his greatest invention was the steam engine
The duration of The Greatest Canadian Invention is 2 hours.
Who invented the first wheel? I honestly dont know, but it was one of the greatest invention ever!