The United States was invented by their past leaders like George Washington.
I believe in the 40 it was not invented but discovered by two BELL LAB engineers. YES it is a USA discovery. Was never an invention.
Ragtime was invented in the U.S.A but I don't know exactly where it was first invented or who did! Sorry I hope this helps still!
who invented the first steamboatRobert Fulton invented the clermont and sailed it on the Hudson river.
the light bulb was invented in 1779.
The screw drill was invented in 1861.
It was invented in USA.
The ipod was invented in the USA
USA invented the javelin rocket.
It was invented in the USA (and built there).
USA!!!!!!!!!=]
The USA.
usa
USA
it was invented by William G Morgan from usa.
USA
The USA.
usa