- Apr 28 1st commercial flight across Pacific operated by Pan Am
- May 3 Margaret Mitchell wins Pulitzer Prize for "Gone With the Wind"
- Jul 7 Japanese and Chinese troops clash at the Marco Polo Bridge, beginning of Second Sino-Japanese War
- Jul 31 Politburo enables Operative Order 00447: execute 193,000 Russians
- Aug 2 Marihuana Tax Act of 1937 is passed in America, essentially rendering marijuana and all its by-products illegal
- Aug 13 Second Sino-Japanese War: Japanese forces begin the Battle of Shanghai, a conflict that will last 3 months and involve 1 million troops
- Nov 5 Adolf Hitler informs his military leaders in a secret meeting of his intentions of going to war
- Dec 21 The first full-length animated feature film and the earliest in the Walt Disney Animated Classics series, "Snow White and the Seven Dwarfs", premieres at the Carthay Circle Theatre
Sir Frank Whittle ground-tests the first jet engine designed to power an aircraft at Rugby, England.
On April 12, 1937
Theodore Cole and Ralph Roe attempt to escape from American federal prison Alcatraz Island in San Francisco Bay; neither is ever seen again.
On December 16, 1937