where did
Helicopter
I think thw helicoppter, but i am not so sure.
In the 1930's he invented the helicopter
In Stanford, Conn.
Igor sikorsky invented the helicopter he also died on october 26, 1972 and born on may 25, 1889
Igor Sikorsky's birth name is Igor Ivanovich Sikorsky.
Igor Sikorsky was born on May 25, 1889.
Igor Sikorsky was born on May 25, 1889.
Igor I. Sikorsky Memorial Bridge was created in 2003.
Igor Sikorsky became and still IS famous for inventing the first practical helicopter.
Igor Sikorsky