World history

The Scottish engineer John Logie Baird, inventor of mechanical television, staged the first demonstration of his prototype for colour television.
Hitler annexed Austria and occupied Sudetenland.
"Night of Broken Glass" in Germany.

Swiss history

Max Morgenthaler and his team of researchers at the Nestlé factory in Orbe invented instant coffee.
In May, the Society of Nations recognised Switzerland’s absolute neutrality.

Art and Culture

The American Orson Welles directed a radio adaptation of H.G. Wells’ science-fiction novel The War of the Worlds, causing a wave of panic to sweep across America.