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of or for 20 years. occurring every 20 years.A decade is a period of 10 years. The word is derived (via French and Latin) from the Ancient Greek: δεκάς, romanized: dekas, which means a group of ten. Decades may describe any ten-year period, such as those of a person’s life, or refer to specific groupings of calendar years.A century is a period of 100 years. Centuries are numbered ordinally in English and many other languages. The word century comes from the Latin centum, meaning one hundred. Century is sometimes abbreviated as c.
| Anniversary | Latin-derived term | Other terms |
|---|---|---|
| 20 years | Vicennial | China/Porcelain |
| Vicenary | ||
| 25 years | Quadranscentennial | Silver |
| 30 years | Tricennial | Pearl |
| Anniversary | Latin-derived term | Other terms |
|---|---|---|
| 45 years | Quinquadragennial | Sapphire jubilee |
| 50 years | Semicentennial / Quinquagenary | Golden jubilee |
| 55 years | Quinquinquagennial / Quinquinquagenary | Emerald |
| 60 years | Sexagennial / Sexagenary | Diamond jubilee |
Contents
What is 20 year period called?
of or for 20 years. occurring every 20 years.
Is 20 years considered a decade?
A decade is a period of 10 years. The word is derived (via French and Latin) from the Ancient Greek: δεκάς, romanized: dekas, which means a group of ten. Decades may describe any ten-year period, such as those of a person’s life, or refer to specific groupings of calendar years.
Is 20 years considered a century?
A century is a period of 100 years. Centuries are numbered ordinally in English and many other languages. The word century comes from the Latin centum, meaning one hundred. Century is sometimes abbreviated as c.
How long is 50 years called?
| Anniversary | Latin-derived term | Other terms |
|---|---|---|
| 45 years | Quinquadragennial | Sapphire jubilee |
| 50 years | Semicentennial / Quinquagenary | Golden jubilee |
| 55 years | Quinquinquagennial / Quinquinquagenary | Emerald |
| 60 years | Sexagennial / Sexagenary | Diamond jubilee |
What are decade Birthdays called?
A nonagenarian is someone in their 90s (90 to 99 years old), or someone who is 90 years old. Nonagenarian is often used to be fancy or funny when referring to 90-somethings. The first records of the word nonagenarian come from around 1800.
How long is a decade?
A decade is a period of ten years, especially one that begins with a year ending in 0, for example, 1980 to 1989.
How long is 25 years called?
| Anniversary | Latin-derived term | Other terms |
|---|---|---|
| 25 years | Quadranscentennial | Silver |
| 30 years | Tricennial | Pearl |
| Tricenary | ||
| 35 years | Quintricennial | Coral |
What are 30 years called?
A person between 20 and 29 is called a vicenarian. A person between 30 and 39 is called a tricenarian. A person between 40 and 49 is called a quadragenarian. A person between 50 and 59 is called a quinquagenarian.
Are we in the 21st or 22nd century?
And as we all know, we’re currently in the 21st century, but the years start with 20. And in the 20th century, they all started with 19, and in the 19th, with 18, and so on. No 22nd century spoilers, please.
What is the 21st century called?
…
21st century.
| Millennium: | 3rd millennium |
|---|---|
| Categories: | Births – Deaths Establishments – Disestablishments |
How long is a millennia?
millennium, a period of 1,000 years. The Gregorian calendar, put forth in 1582 and subsequently adopted by most countries, did not include a year 0 in the transition from bc (years before Christ) to ad (those since his birth).
Why is 2021 called the 21st century?
We live in the 21st Century, that is, the 2000s. Similarly when we say “20th Century,” we are referring to the 1900s. All this because, according to the calendar we use, the 1st Century included the years 1-100 (there was no year zero), and the 2nd Century, the years 101-200.
What is a 100 years called?
a centennial. a period of 100 years; century.
What is 100th anniversary called?
An anniversary of 100 years is simply called a centenary.
What is 500 years called?
Definition of quincentenary
: a 500th anniversary or its celebration. Other Words from quincentenary Example Sentences Learn More About quincentenary.
What is a period of 25 years called?
quarter-century – a period of 25 years.
What is Duodecennial?
Definition of duodecennial
: occurring once in 12 years.
What is a Vicenarian?
A person between 20 and 29 is called a vicenarian. A person between 30 and 39 is called a tricenarian. A person between 40 and 49 is called a quadragenarian. A person between 50 and 59 is called a quinquagenarian. A person between 60 and 69 is called a sexagenarian.
What is a Vicennium?
Noun. vicennium (plural vicennia) A period of twenty years.
Anniversary – Wikipedia
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Vicennial Definition & Meaning | Dictionary.com
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Decade – Wikipedia
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Century – Wikipedia
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What Is A Period Of 50 Years Called – Realonomics
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What Is A Period Of 50 Years Called
What is a 50 year time frame called
What’s the period of 50 years
Is 50 years considered a century
What do we call 50 years
What’s half a century called
What are the decades called
What are periods of years called
What called 20years
What is a 100000 years called
What is 100 Decades called
What is a period of 100 years called
What is half a decade
What does Quinquagenary mean
What word means 1000 years
What Is quarter century
What is 2000 decade called
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What is every 15 years called
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Year Decade Century Millennium Time Measurement Relations
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What is 20 years called if 10 is called a decade? – Answers
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there is no formal name for twenty years. you could call it a
score. but score can stand for twenty of anything. - Table of Contents:
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What is a period of 20 years called?
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What is a period of 20 years called?
Since, 10 years = a Decade, (via French and Latin) which means… - Table of Contents:
What is a period of 20 years called
What do u mean by decade
Does a decade mean 10 years
What is a period of 5 years called
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Who decided 365 days a year
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How Long Is a Decade And a Century? – How To Discuss
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How long is a century
How Long is a Decade and Why
Why is Decade 10 Years Long
What is a Century
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Calculating the time
Centenial Year
How long is a Decade
Naming the Decades
Significance of a Decade
Why is Decade 10 Years Long
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Start and end of centuries
Other Terms for Different Time Durations
Why is it 10 years
How long is a Century
## How many years are in decade century and Millennium
Years into biennium lustrum decade century and millennium
how many years is a century
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Frequently Asked Questions
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The beginning and end of centuries
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How many years does a millennium century or decade encompass
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Vicennial Definition & Meaning – Merriam-Webster
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Decade – Wikipedia
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- Summary of article content: Articles about Decade – Wikipedia A decade is a period of 10 years. The word is derived (via French and Latin) from the Ancient Greek: δεκάς, romanized: dekas, which means a group of ten. …
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Age by Decade | Britannica Dictionary
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10 years are called a Decade – what are 20 years called? – ForNoob
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Anniversary
Date of an event from a previous year and the observance of this milestone
Memorial plaque presented by the National Capital Sesquicentennial Commission, 1951
An anniversary is the date on which an event took place or an institution was founded in a previous year, and may also refer to the commemoration or celebration of that event. The word was first used for Catholic feasts to commemorate saints.
Most countries celebrate national anniversaries, typically called national days. These could be the date of independence of the nation or the adoption of a new constitution or form of government. There is no definite method for determining the date of establishment of an institution, and it is generally decided within the institution by convention. The important dates in a sitting monarch’s reign may also be commemorated, an event often referred to as a “jubilee”.
Anniversary names [ edit ]
Birthdays are the most common type of anniversary, on which someone’s birthdate is commemorated each year. The actual celebration is sometimes moved for practical reasons, as in the case of an official birthday or one falling on February 29.
Wedding anniversaries are also often celebrated, on the same day of the year as the wedding occurred.
Death anniversaries.
The Latin phrase dies natalis (literally “birth day”) has become a common term, adopted in many languages, especially in intellectual and institutional circles, for the anniversary of the founding (“legal or statutory birth”) of an institution, such as an alma mater (college or other school). In ancient Rome, the [dies] Aquilae natalis was the “birthday of the eagle”, the anniversary of the official founding of a legion.
Anniversaries of nations are usually marked by the number of years elapsed, expressed with Latin words or Roman numerals.
Latin-derived numerical names [ edit ]
Latin terms for anniversaries are mostly straightforward, particularly those relating to the first twenty years (1–20), or multiples of ten years (30, 40, 50, 60, 70 etc.), or multiples of centuries or millenniums (100, 200, 300, 1,000, 2,000, 3,000, etc.) In these instances, the name of the anniversary is generally derived from the Latin word(s) for the respective number of years. However, when anniversaries relate to fractions of centuries (125, 150, 175, 250 years—i.e. 1.25, 1.5, 1.75, and 2.5 centuries), the situation is not as simple.
Roman fractions were based on a duodecimal system. From 1⁄12 to 8⁄12 they were expressed as multiples of twelfths (uncia “twelfth”; the source of the English words inch and ounce) and from 9⁄12 to 11⁄12 they were expressed as multiple twelfths less than the next whole unit—i.e. a whole unit less 3⁄12, 2⁄12 or 1⁄12 respectively. There were also special terms for quarter (quadrans), half (semis), and three-quarters (dodrans). Dodrans is a Latin contraction of de-quadrans which means “a whole unit less a quarter” (de means “from”; quadrans means “quarter”). Thus for the example of 175 years, the term is a quarter century less than the next whole (bi)century or 175 = (−25 + 200).[1]
In Latin, it seems that this rule did not apply precisely for 1+1⁄2. While secundus is Latin for “second”, and bis for “twice”, these terms are not used such as in sesqui-secundus. Instead sesqui (or ses) is used by itself.
Anniversary Latin-derived term Other terms Comments 6 months Semiannual ‘Biannual’ is commonly used to mean once every two years (biennially) as well as twice in a year. Biannual 1 year Annual Paper 2 years Biennial Cotton ‘Biannual’ is commonly used to mean once every two years (biennially) as well as twice in a year. Biannual 3 years Triennial Leather 4 years Quadrennial Linen 5 years Quinquennial Wood 6 years Sexennial Iron 7 years Septennial Wool 8 years Octennial Bronze 9 years Novennial Copper 10 years Decennial Tin
Aluminum Denary 11 years Undecennial Steel 12 years Duodecennial Silk 12 1 ⁄ 2 years Parsley A humorous or mock wedding anniversary celebrated in Germany and the Netherlands where everyone needs to wear something green 13 years Tredecennial Lace 14 years Quattuordecennial Ivory 15 years Quindecennial Crystal 16 years Sexdecennial Sapphire Sapphire is separately used for other anniversaries 17 years Septdecennial Orchid 18 years Octdecennial Quartz 19 years Novdecennial Jade 20 years Vigintennial China/Porcelain Vicennial Vicenary 25 years Quadranscentennial Silver 30 years Tricennial Pearl Tricenary 35 years Quintricennial Coral 40 years Quadragennial Ruby Quadragenary 45 years Quinquadragennial Sapphire 50 years Semicentennial Golden Previously, “jubilee” by itself was used to indicate celebrations at 50 year intervals Quinquagenary 55 years Quinquinquagennial Emerald Quinquinquagenary 60 years Sexagennial Diamond Diamond is separately used for the 75th anniversary, its use for 60th years being popularized by Queen Victoria’s Diamond Jubilee Sexagenary 65 years Quinsexagennial Sapphire Sapphire is separately used for other anniversaries 70 years Septuagennial Platinum Septuagenary 75 years Semisesquicentennial Diamond Diamond is separately used for the 60th anniversary Demisesquicentennial 80 years Octogintennial Oak Octogenary 90 years Nonagintennial Granite Nonagenary 100 years Centennial Centenary 125 years Quasquicentennial Term is broken down as quasqui- (and a quarter) centennial (100 years). Quasqui is a contraction from quadrans “a quarter” plus the clitic conjunction -que “and”. The term was coined by Funk and Wagnalls editor Robert L. Chapman in 1961.[2] 150 years Sesquicentennial Term broken down as sesqui- (one and a half) centennial (100 years) 175 years Dodransbicentennial Dodrans is a Latin contraction of de-quadrans which means “a whole unit less a quarter” (de means “from”; quadrans means “quarter”). 175 years is a quarter century less than the next whole (bi)century (175 = 200 − 25).[1] Dodrabicentennial Alternative Latin form of Dodransbicentennial Dequasbicentennial Alternative Latin form of Dodransbicentennial Dosquicentennial Dosquicentennial has been used in modern times and this is perhaps a modern contraction of “de-quadrans”. However, it seems inappropriate to combine the terms que and de when dealing with such Roman fractions. In any event, if such a conjunction was appropriate then it would perhaps more likely have been “Dosquibicentennial” (but the result is little shorter anyway).[1] Demisemiseptcentennial Probably[ attribution needed ] a modern coined term: demisemiseptcentennial; literally one-half (demi-) × one-half (semi-) × seven (sept-) × 100 years (centennial)—also demisemiseptcentenary.[3][4] Quartoseptcentennial Probably[ attribution needed ] a modern coined term: quartoseptcentennial; literally one-quarter (quarto-) × seven (sept-) × 100 years (centennial)—also quartoseptcentenary.[3] Terquasquicentennial A coined word for an anniversary of 175 years, but the elements of the word literally refer to an anniversary of 375 years, as follows: ter- (3) × quasqui- (1 1 ⁄ 4 ) × centennial (100 years) Septaquintaquinquecentennial Suggested by lexicographer Robert L. Chapman to William Safire; first appeared in Safire’s column, “On Language” (The New York Times Magazine, February 12, 1995). It is a coined word for an anniversary of 175 years, but the elements of the word literally refer to an anniversary of 35,000 years, as follows: septaquinta- (70) × quinque- (5) × centennial (100 years) 200 years Bicentennial Bicentenary 250 years Sestercentennial To express 2 + 1 ⁄ 2 in Latin it would be expressed as “half-three”. The term relates to being halfway [from the second] to the third integer. In Latin this is “Sestertius”, which is a contraction of semis (halfway) tertius (third)—hence Sestercentennial.[1] Semiquincentennial Probably[ attribution needed ] a modern coined term: semi- (half) × quin (5) × centennial (100 years) = 250 years. Used by Brown University in 2015.[5] Bicenquinquagenary Used by Princeton University in 1996, Reading, Pennsylvania in 1998, and Washington and Lee University in 1999.[6] It is a coined word for an anniversary of 250 years: bi- (2) × cen(t)- (100) + quinquagenary (50 years). Quarter-millennial [7] 300 years Tercentenary Tercentennial Tricentenary Tricentennial 350 years Sesquarcentennial Sesquarcentennial is a modern coined term; sesquarcentennial for 350 years is deduced here from the “Sestertius” definition for 250 years above. For 350 years it relates to being halfway from the third to the fourth integer; thus a contraction of semis (halfway) and quartus (fourth); hence Sesquarcentennial. Semiseptcennial is probably[ attribution needed ] a modern coined term: semi- (half) × sept (7) × cen(t)- (100) × centennial (350 years). Semiseptcentennial 400 years Quadricentennial Quadricentenary Quatercentenary 500 years Quincentenary Quincentennial 600 years Sexcentenary Sexacentennial 700 years Septcentennial Probably[ attribution needed ] a coined term; earliest known use in March 1988.[8] Chiang Mai Septcentennial Stadium (Chiang Mai, Thailand) was completed in 1991.[9] Septuacentennial 800 years Octocentenary Octocentennial 900 years Nonacentennial 1000 years Millennial 1500 years Sesquimillennial Term broken down as sesqui- (one and a half) millennial (1000 years) 2000 years Bimillennial 3000 years Trimillennial 10,000 years Decamillennial
Anniversary symbols [ edit ]
Many anniversaries have special names. Etiquette in Society, in Business, in Politics and at Home by Emily Post, published in 1922, contained suggestions for wedding anniversary gifts for 1, 5, 10, 15, 20, 25, 50, and 75 years.[10] Wedding anniversary gift suggestions for other years were added in later editions and publications; they now comprise what is referred to as the “traditional” list. Generally speaking, the longer the period, the more precious or durable the material associated with it. For the general list of the wedding anniversary symbols, see Wedding anniversary.
However, there are variations according to some national traditions. There exist numerous partially overlapping, partially contradictory lists of anniversary gifts (such as wedding stones), separate from the ‘traditional’ names. The concepts of a person’s birthday stone and zodiac stone, by contrast, are fixed for life according to the day of the week, month, or astrological sign corresponding to the recipient’s birthday.
See also [ edit ]
Wikipedia
Period of 10 years
A decade is a period of 10 years. The word is derived (via French and Latin) from the Ancient Greek: δεκάς, romanized: dekas, which means a group of ten. Decades may describe any ten-year period, such as those of a person’s life, or refer to specific groupings of calendar years.
Usage [ edit ]
Any period of ten years is a “decade”.[1] For example, the statement that “during his last decade, Mozart explored chromatic harmony to a degree rare at the time” merely refers to the last ten years of Wolfgang Amadeus Mozart’s life without regard to which calendar years are encompassed. Also, ‘the first decade’ of a person’s life begins on the day of their birth and ends at the end of their 10th year of life when they have their 10th birthday; the second decade of life starts with their 11th year of life (during which one is typically still referred to as being “10”) and ends at the end of their 20th year of life, on their 20th birthday; similarly, the third decade of life, when one is in one’s twenties or 20s, starts with the 21st year of life, and so on, with subsequent decades of life similarly described by referencing the tens digit of one’s age.
0-to-9 decade [ edit ]
The most widely used method for denominating decades is to group years based on their shared tens digit, from a year ending in a 0 to a year ending in a 9 – for example, the period from 1960 to 1969 is the 1960s,[2] and the period from 1990 to 1999 is the 1990s. Sometimes, only the tens part is mentioned (’60s or sixties, and ’90s or nineties), although this may leave it ambiguous as to which century is meant. However, this method of grouping decades cannot be applied to the decade immediately preceding AD 10, because there was no year 0.
Particularly in the 20th century, 0-to-9 decades came to be referred to with associated nicknames, such as the “Swinging Sixties” (1960s), the “Warring Forties” (1940s) and the “Roaring Twenties” (1920s). This practice is occasionally also applied to decades of earlier centuries; for example, referencing the 1890s as the “Gay Nineties” or “Naughty Nineties”.
1-to-0 decade [ edit ]
A rarer approach groups years from the beginning of the AD calendar era to produce successive decades from a year ending in a 1 to a year ending in a 0, with the years 1–10 described as “the 1st decade”, years 11–20 “the 2nd decade”, and so on; later decades are more usually described as ‘the Nth decade of the Mth century’ (using the strict interpretation of ‘century’).[a] For example, “the second decad of the 12th. Cent.” (sic);[3] “The last decade of that century”;[4] “1st decade of the 16th century”;[5] “third decade of the 16th century”;[6] “the first decade of the 18th century”.[7] This decade grouping may also be identified explicitly; for example, “1961–1970”;[8] “2001–2010”;[9] “2021–2030”.[10] The BC calendar era ended with the year 1 BC and the AD calendar era began the following year, AD 1. There was no year 0.
Usage methods compared Year 1 2 3 … 9 10 11 12 … 19 20 … 2000 2001 2002 … 2009 2010 2011 2012 … 2019 2020 2021 2022 … 2029 2030 0-to-9 decade 0s 10s … 2000s 2010s 2020s … 1-to-0 decade 1st decade of the 1st century 2nd decade of the 1st century … 1st decade of the 21st century 2nd decade of the 21st century 3rd decade of the 21st century
Public usage of the two methods [ edit ]
A YouGov poll was conducted on December 2, 2019, asking 13,582 adults in the United States, “When do you think the next decade will begin and end?” Results showed that 64% answered that “the next decade” would begin on January 1, 2020, and end on December 31, 2029 (0-to-9 method); 17% answered that “the next decade” would begin on January 1, 2021, and end on December 31, 2030 (1-to-0 method); 19% replied that they did not know.[11]
See also [ edit ]
References [ edit ]
Notes [ edit ]
^ There are two ways of thinking about when a century begins and ends. The “strict” viewpoint counts centuries from −01 to −00, while the “popular” viewpoint counts centuries from −00 to −99. For example, the “first decade of the 19th century” may mean either 1801–1810 (if used in “strict” terms) or 1800–1809 (if used in “popular” terms). See century for more information.
Wikipedia
Unit of time lasting 100 years
A century is a period of 100 years. Centuries are numbered ordinally in English and many other languages. The word century comes from the Latin centum, meaning one hundred. Century is sometimes abbreviated as c.[1]
A centennial or centenary is a hundredth anniversary, or a celebration of this, typically the remembrance of an event which took place a hundred years earlier.
Start and end of centuries [ edit ]
Although a century can mean any arbitrary period of 100 years, there are two viewpoints on the nature of standard centuries. One is based on strict construction, while the other is based on popular perception.
According to the strict construction, the 1st century AD began with AD 1 and ended with AD 100, the 2nd century spanning the years 101 to 200, with the same pattern continuing onward.[note 1] In this model, the n-th century starts with the year that ends with “01”, and ends with the year that ends with “00”; for example, the 20th century comprises the years 1901 to 2000 in strict usage.[2]
In popular perception and practice, centuries are structured by grouping years based on sharing the ‘hundreds’ digit(s). In this model, the n-th century starts with the year that ends in “00” and ends with the year ending in “99”;[3] for example, the years 1900 to 1999, in popular culture, constitute the 20th century.[4] (This is similar to the grouping of “0-to-9 decades” which share the ‘tens’ digit.)
To facilitate calendrical calculations by computer, the astronomical year numbering and ISO 8601 systems both contain a year zero, with the astronomical year 0 corresponding to the year 1 BCE, the astronomical year -1 corresponding to 2 BCE, and so on.[5][6]
Alternative naming systems [ edit ]
Informally, years may be referred to in groups based on the hundreds part of the year. In this system, the years 1900–1999 are referred to as the nineteen hundreds (1900s). Aside from English usage, this system is used in Swedish, Danish, Norwegian, Icelandic, Finnish and Hungarian. The Swedish nittonhundratalet (or 1900-talet), Danish nittenhundredetallet (or 1900-tallet), Norwegian nittenhundretallet (or 1900-tallet), Finnish tuhatyhdeksänsataaluku (or 1900-luku) and Hungarian ezerkilencszázas évek (or 1900-as évek) refer unambiguously to the years 1900–1999.
Italian also has a similar system, but it only expresses the hundreds and omits the word for “thousand”. This system mainly functions from the 11th to the 20th century:
il Quattrocento (that is “the four hundred”, the 15th century) il Cinquecento (that is “the five hundred”, the 16th century).
These terms are often used in other languages when referring to the history of Italy.
Similar dating units in other calendar systems [ edit ]
While the century has been commonly used in the West, other cultures and calendars have utilized differently sized groups of years in a similar manner. The Hindu calendar, in particular, summarizes its years into groups of 60,[7] while the Aztec calendar considers groups of 52.[8]
See also [ edit ]
Notes [ edit ]
^ AD and CE year numbering, which are numerically equivalent, are now commonly used to number years, including those which occurred before these notations were invented; AD did not become widespread in Europe until early in the 2nd millennium.
References [ edit ]
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