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Sikorski's birth
He was born in Kiev, Ukraine. -
Emigration to the USA
After the Russian Revolution, he emigrated to the USA -
Sikorski Aero Engineering Corporation
He started his own company, the Sikorksi Aero Engineering Corporation -
Period: to
Creation of the first helicopter
He created a series of successful aircraft, including the first helicopter. -
Sikorski's death
He died in the USA.