the USA, these are an American invention and is as "American" as apple pie!!!
China is credited with the invention of the toothbrush.
Exactly that...that one invention leads to another invention. For example. The invention of the car, led to the invention of the assembly line
Such a person is an inventor.
I think that the car would be the most best invention!
karl ( carl ) benz
The Car
slepping car
yes
a car
It was Sicily!
USSR