Examples of Gregorian calendar in the following topics:
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- While various calendars were developed and used across millennia, cultures, and geographical regions, Western historical scholarship has unified the standards of determining dates based on the dominant Gregorian calendar.
- The Gregorian calendar was introduced as a refinement of the Julian calendar in 1582 and is today in worldwide use as the de facto calendar for secular purposes.
- The Gregorian calendar, also called the Western calendar and the Christian calendar, is internationally the most widely used civil calendar today.
- The terms anno Domini (AD) and before Christ (BC) are used to label or number years in the Julian and Gregorian calendars.
- During the period between 1582, when the first countries adopted the Gregorian calendar, and 1923, when the last European country adopted it, it was often necessary to indicate the date of some event in both the Julian calendar and in the Gregorian calendar.
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- 1789 - 1799: The Dechristianisation of France during the Revolution: the state confiscates Church properties, bans monastic vows with the passage of the Civil Constitution of the Clergy, removes the Church from the Roman Pope and subordinates it as a department of the Government, replaces the traditional Gregorian Calendar, and abolishes Christian holidays.
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- New Year's Day celebrates the beginning of the Gregorian calendar year and marks the traditional end of Christmas and the holiday season.
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- A 260-day calendar (Tzolkin) was combined with the 365-day solar calendar (Haab') to create a calendar round.
- It utilized 20 named days that repeated 13 times in that calendar year.
- The solar calendar (Haab') is very similar to the modern solar calendar year that uses the earth's orbit around the sun to measure time.
- Each symbol represents a specific day within the calendar.
- When the Tzolkin and Haab' calendar's are combined they create a 52-year solar calendar.
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- The first formalized calendar-based method was developed in 1930 by John Smulders, a Roman Catholic physician from the Netherlands.
- The actual failure rate of calendar-based methods is 25% per year.
- The low level of reliability of calendar-based methods is because their formulas make several assumptions that are not always true.
- Calendar-based methods use records of past menstrual cycles to predict the length of future cycles.
- Finally, calendar-based methods assume that all bleeding is true menstruation.
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- One of the most well known Aztec sculptures is the Calendar Stone.
- The monolith of the Stone of the Sun, also known as the Aztec calendar stone (National Museum of Anthropology and History, Mexico City).
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- One of the best primary sources of information on Aztec culture, they served as calendars, ritual texts, almanacs, maps, and historical manuscripts of the Aztec people, spanning from before the Spanish conquest through the colonial era.
- The first section is one of the most intricate surviving divinatory calendars (or tonalamatl), and most of the page is taken up with a painting of the ruling deity or deities.
- With the symbols of the calendar, divided into 13-day periods, Aztec priests were able to create horoscopes and divine the future.
- The Codex Ixtlilxochitl is an early 17th century codex fragment detailing, among other subjects, a calendar of the annual festivals and rituals celebrated by the Aztec teocalli during the Mexican year.
- The original page thirteen of the Codex Borbonicus shows the 13th trecena (or 13-day period) of the Aztec sacred calendar.
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- The Shang also established a lunar calendar that was used to predict and record events, such as harvests, births, and deaths (of rulers and peasants alike).
- Because the calendar was used to time both crop planting and the harvest, the king had to employ skilled astronomers to predict dates (and successes) of annual harvests; this would help him maintain support from the people.
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- A company may report its financials in a fiscal year that is different from the calendar year.
- While some firms do follow the calendar year, others--such as retail companies--prefer not to follow the calendar year due to seasonality of sales or expenses, et cetera.