What day of the week was September 18, 1939?

The day of the week September 18th, 1939 fell on was a Monday.

Frankie Avalon the American actor and singer was born on 18 September in 1939. As was Gerry Harvey the Australian businessman, co-founded Harvey Norman , Jorge Sampaio the Portuguese lawyer and politician, 18th President of Portugal , Fred Willard the American actor , Jan Camiel Willems the Belgian theorist (d. 2013) .

Stanisław Ignacy Witkiewicz the Polish author, painter, and photographer (b. 1885) died on this day in 1939.

World War II: Polish government of Ignacy Mościcki flees to Romania. The Nazi propaganda broadcaster known as Lord Haw-Haw begins transmitting.