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Juan de la Cierva makes the first autogyro flight.
Related Wikipedia articles
Juan de la Cierva
Spanish engineer and count (1895–1936)
Juan de la Cierva y Codorníu, 1st Count of la Cierva, was a Murcian civil engineer, pilot and a self-taught aeronautical engineer. His most famous accomplishment was the invention in 1920 of a rotorcraft called Autogiro, a single-rotor type of aircraft that came to be called…Source: Wikipedia (CC BY-SA)
Autogyro
Rotorcraft with unpowered rotor
An autogyro, gyroplane or gyrocopter, is a class of rotorcraft that uses an unpowered rotor in free autorotation to develop lift. A gyroplane "means a rotorcraft whose rotors are not engine-driven, except for initial starting, but are made to rotate by action of the air when the…Source: Wikipedia (CC BY-SA)
January 9
Day of the year
January 9 is the ninth day of the year in the Gregorian calendar; 356 days remain until the end of the year.Source: Wikipedia (CC BY-SA)