What day of the week was September 23, 1909?

The day of the week September 23rd, 1909 fell on was a Thursday.

Lorenc Antoni the Kosovo-Albanian composer and conductor (d. 1991) was born on 23 September in 1909.

The Phantom of the Opera (original title: Le Fantôme de l'Opéra) the a novel by French writer Gaston Leroux, is first published as a serialization in Le Gaulois.