Determination of the day of the week in the year row (07) is located in column G. The letter in the century row (13) and column G is E, so the day of the week is Friday. January 1 corresponds to G, G in the year row (00) corresponds to F in the century row (20), and F corresponds to Saturday. A pithy formula for the method: ""Date letter (G), letter (G) is in year row (00) for the letter (F) in century row (20), and for the day, the letter (F) become weekday (Saturday)"". Use 17 (in the Gregorian century row, column C) and 83 (in
National Library Week a one day event, National Libraries Day, that began in 2012. National Library Week First sponsored in 1958, National Library Week is a national observance sponsored by the American Library Association (ALA) and libraries across the United States each April, typically the second full week. In 1954 a nonprofit National Book Committee was established between the ALA and the American Book Publishers. In 1957 the committee developed the idea for National Library Week, hoping that it would motivate people to read and to support libraries. National Library Week occurs in April which is School Library Month. National Library Workers Day