- February 13: Christopher Morcom, Alan Turning‘s lover, dies.
- Evangeline Whipple dies and is buried next to Rose Cleveland.
- April 2: Dante “Tex” Gill is born.
- Sterling A. Brown writes a poem called “Ma Rainey” about the legendary blues singer.
- Willem Arondeus begins a relationship with Jan Tijssen.
- The Nazis destroy the Institute for Sexual Sciences in Berlin — the headquarters of the Scientific-Humanitarian Committee. The group disbands.
- Dale C. Olson is born in Fargo, North Dakota.
- Alan Turing, unaware that it has already been proven, writes a dissertation proving the central limit theorem, and is subsequently elected a fellow at King’s College.
- Willem Arondeus turns to writing and poetry.
- June 26: Mariasilvia Spolato is born.
- Alan Turing publishes a paper titled “On Computable Numbers, with an Application to the Entscheidungsproblem” which plans out Turing machines.
- Alan Turing begins studying under Alonzo Church at Princeton University.
- Alan Turing stops studying at Princeton University, and begins to study code breaking.
- Willem Arondeus publishes two novels.
- May 30: Christine Jorgensen is born — assigned the male gender and given the name “George William Jorgensen Jr.”
- Willem Arondeus publishes “The Tragedy of the Dream”.
- September 3: Britain declares war on Germany
- September 4: Alan Turing reports for duty at the Government Code & Cipher School in Bletchley Park.
- December 22: Ma Rainey dies of a heart attack.