Determination of the day of the week row C) to find the dominical letter that is E. The letter for September 18 is B, so the day of the week is Thursday. Use 16 (in the Julian century row, column E) and 76 (in row D) to find the dominical letter that is A. February 23 is a "D" day, so the day of the week is Wednesday. In a handwritten note in a collection of astronomical tables, Carl Friedrich Gauss described a method for calculating the day of the week for 1 January in any given year. He never published it. It was finally included in
Wall Street Crash of 1929 Kondratiev and Charles E. Mitchell, the crash was merely a historical event in the continuing process known as economic cycles. The impact of the crash was merely to increase the speed at which the cycle proceeded to its next level. Milton Friedman's "A Monetary History of the United States", co-written with Anna Schwartz, advances the argument that what made the "great contraction" so severe was not the downturn in the business cycle, protectionism, or the 1929 stock market crash in themselves, but the collapse of the banking system during three waves of panics over the 1930–33 period. Wall Street Crash