In which decade did Philip G. Johnson start working in the aviation industry?
1910s
1920s
1930s
1940s
Answer
Philip G. Johnson began working in the aviation industry in the 1920s. His background in engineering and business helped him become a pioneer in the manufacturing of airplanes and the creation and operation of commercial airlines.
Philip G. Johnson Smarty-Pants Showdown: 22 Questions to prove your intelligence