The first piloted helicopter was invented by Paul Cornu in 1907 and it was not successful. One of the first successful helicopters was built by Etienne Oehmichen in 1924 and flew for 1 kilometer.
Igor Sikorski built the first practical helicopter
Igor Sikorski constructed the first successful modern helicopter
Germany
the first plane was built in 1903 the first helicopter was built in 1909
Igor Sikorsky did.
Mad skillz
The first practical helicopter built was the Sikorsky VS300, as in pic.
Many people contributed ideas, but Igor Sikorski made the first successful helicopter
Igor sikorsky
The first operational helicopter was built in 1936, the Focke-Wulf Fw 61.
igor sikorsky the s 300