\n* Radio becomes dominant mass media in industrial nations.\n* First intercontinental commercial airline flights.\n* Height of the Art Deco movement in Europe and the US\n* The Wizard of Oz\n* "Big band" or "swing" music becomes popular (from 1935 onward)
"Your Highness, I have no need of this hypothesis."
- Pierre Laplace (1749-1827), to Napoleon on why his works on
celestial mechanics make no mention of God.