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 January 1, 2000. (year − 1 for January) formula_3 formula_4 Note: The first is only for a 00 leap year and the second is for any 00 years. The term mod 7 gives the values of months: The term mod 7 gives the values of years: The term mod 7 gives the values of centuries: Now from the general formula: formula_5; January 1, 2000 can be recalculated as follows: formula_6 formula_7 Kraitchik proposed two methods for calculating the day of the week. One is a graphical method. The other uses a formula that he credits to Gauss on p. 110: