Columbus Day "Cristoforo Colombo" naming after him many civilian and military ships, like the ocean liner SS "Cristoforo Colombo". Since 1987, Spain has celebrated the anniversary of Columbus's arrival in the Americas as its "Fiesta Nacional" or "National Day." Previously Spain had celebrated the day as "Día de la Hispanidad", emphasizing Spain's ties with "Hispanidad", the international Hispanic community. In 1981 a royal decree established the "Día de la Hispanidad" as a national holiday. However, in 1987 the name was changed to "Fiesta Nacional", and October 12 became one of two national celebrations, along with Constitution Dayon December 6. Spain's "national day"
Month quarter of a day shorter than the solar year and stellar events "wandered" through the calendar, it is referred to as Annus Vagus or "Wandering Year". The Nisga'a calendar coincides with the Gregorian calendar with each month referring to the type of harvesting that is done during the month. This calendar was proposed during the French Revolution, and used by the French government for about twelve years from late 1793. There were twelve months of 30 days each, grouped into three ten-day weeks called "décades". The five or six extra days needed to approximate the tropical year were placed after