What day of the week was October 19, 1900?

The day of the week October 19th, 1900 fell on was a Friday.

Erna Berger the German soprano (d. 1990) was born on 19 October in 1900. As was Bill Ponsford the Australian cricketer and baseball player (d. 1991) , Roy Worters the Canadian ice hockey player (d. 1957) .

Max Planck the in his house at Grunewald, on the outskirts of Berlin, discovers the law of black body emission (Planck's law).