The cello was invented by an Italian man, Andrea Amati, in the mid 1500s.
I am wondering where was helicopter invented?
Nobody invented the helicopter in 1918
An engineer, Igor Sikorski, invented the helicopter.
No African American invented the helicopter. The first practical helicopter was invented by Igor Sikorski, a Russian American.
Igor Sikorsky invented the first practical helicopter around 1940
Igor Sikorsky invented the helicopter.
no
Igor Sikorski invented the first practical flying helicopter.
J. T awston invented the helicopter (black male)
Igor Sikorski, a Russian born American, invented the first practical helicopter.
That is Igor Sikorski, and he was in his 40 's when he invented the first practical helicopter.