In that setting, the answer has to be Leonardo da vinci. Some of his sketches show one machine that (rather easily) interpreted as a crude helicopter, and something that with (a lot more imagination) can be interpreted as a kind of bicycle. The Bicycle drawings however, have been proven to be false, and added at a far later date.
Leonardo da Vinci invented the bicycle and the helicopter.
He was famous for Inventing stuff. He invented the helicopter and tank and even the bicycle.
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.