Aircraft (A)

Consequently, the history of aircraft can be divided into five eras: Pioneers of flight, from the earliest experiments to 1914; First World War, 1914 to 1918; Aviation between the World Wars, 1918 to 1939; Second World War, 1939 to 1945; Postwar era, also called the jet ... age, 1945 to the present day. — en.wikipedia.org