Eugen Mittwoch Eugen Mittwoch Eugen Mittwoch (December 4, 1876 - November 8, 1942) was the founder of Modern Islamic Studies in Germany, and at the same time an eminent Jewish scholar. Coming from an old Orthodox Jewish family, Mittwoch was born in Schrimm, Prussian Province of Posen, Imperial Germany (now Srem in Poland). He initially wanted to become a Rabbi. During his studies in Berlin he discovered Islamic studies and did his doctorate with Eduard Sachau. During World War I, Mittwoch was the head of the German Nachrichtenstelle für den Orient from 1916 until 1918. After the agency initially employed people who
Determination of the day of the week since the start of the century, and then add these together along with the number of years since the start of the century, and the day number of the month. Eventually, one ends up with a day-count to which one applies modulo 7 to determine the day of the week of the date. Some methods do all the additions first and then cast out sevens, whereas others cast them out at each step, as in Lewis Carroll's method. Either way is quite viable: the former is easier for calculators and computer programs; the latter for mental calculation (it is quite