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
World Day for Laboratory Animals and other groups opposed to animal research have claimed that World Day For Animals In Laboratories is recognised by the United Nations. However, the day is not included on the official list of United Nations observances. World Day for Laboratory Animals World Day For Animals In Laboratories (WDAIL) (also known as World Lab Animal Day) is observed every year on 24 April. The surrounding week has come to be known as "World Week for Animals In Laboratories". The National Anti-Vivisection Society (NAVS) describe the day as an "international day of commemoration" for animals in laboratories. World Day For Animals In