Deaths on September 23

Jakob Schaffner, Swiss author and critic (b. 1875)

Jakob Schaffner (14 November 1875 – 23 September 1944) was a leading Swiss novelist who became a supporter of Nazism.

10 Apr

Auschwitz concentration camp
Rudolf Vrba and Alfréd Wetzler escape from Birkenau death camp.
13 Apr

Soviet Union
Diplomatic relations between New Zealand and the Soviet Union are established.
26 Jun

RAF
World War II: San Marino, a neutral state, is mistakenly bombed by the RAF based on faulty information, leading to 35 civilian deaths.
26 Aug

Charles de Gaulle
World War II: Charles de Gaulle enters Paris.
31 Dec

Nazi Germany
World War II: Hungary declares war on Nazi Germany.