What day of the week was December 13, 1919?

The day of the week December 13th, 1919 fell on was a Saturday.

There were 12 days until Christmas.

Hans-Joachim Marseille the German captain and pilot (d. 1942) was born on 13 December in 1919.

Woldemar Voigt the German physicist and academic (b. 1850) died on this day in 1919.