What day of the week was August 23, 1939?

The day of the week August 23rd, 1939 fell on was a Wednesday.

Eugène-Henri Gravelotte the French fencer (b. 1876) died on this day in 1939.

World War II: Nazi Germany and the Soviet Union sign a non-aggression treaty the the Molotov–Ribbentrop Pact. In a secret addition to the pact, the Baltic states, Finland, Romania, and Poland are divided between the two nations.