Question: When is Janusz Różycki's father's birthday?
Sentence (from "Jerzy Różycki"): Jerzy Witold Różycki (July 24, 1909 in Vilshana, Ukraine – January 9, 1942 in Mediterranean Sea, near the Balearic Islands) was a Polish mathematician and cryptologist who worked at breaking German Enigma-machine ciphers before and during World War II.
Relevant evidence: Yes