Eugen Mittwoch moved via Paris to London with his immediate family. During the last 18 months of his life, he worked for the Middle East department of the British Ministry of Information under the leadership of Ernst Jaeckh. The remaining family, including his mother, who was murdered in Bergen-Belsen, perished in the Shoah. A daughter Adele Mittwoch (1925 - 2011) was a renowned psychotherapist in England, specializing in group psychotherapy, another daughter Agnes (born 1926) later immigrated to Israel ( made aliyah ) and was a university lecturer in Jerusalem. The oldest daughter, Ursula, born 1924, was professor for human genetics at
Determination of the day of the week the intended design objective. The tabular forerunner to Tøndering's algorithm is embodied in the following K&R C function. With minor changes, it was adapted for other high level programming languages such as APL2. Posted by Tomohiko Sakamoto on the comp.lang.c Usenet newsgroup in 1992, it is accurate for any Gregorian date. IBM's Rata Die method requires that one knows the "key day" of the proleptic Gregorian calendar i.e. the day of the week of January 1, AD 1 (its first date). This has to be done to establish the remainder number based on which the day of the week is