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.
Memorial plaque presented by the National Capital Sesquicentennial Commission, 1951
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".
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.
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 terms for anniversaries are mostly straightforward, particularly those relating to the first thirty years (1–30), or multiples of ten years (30, 40, 50, 60, 70 etc.), or multiples of centuries or millenniums (100, 200, 300, 1000, 2000, 3000, etc.) In these instances, the name of the anniversary is generally derived from the Latin word(s) for the respective number of years. When anniversaries relate to fractions of centuries (125, 150, 175, 225 years—i.e. 1.25, 1.5, 1.75, and 2.25 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
1 Day
Datal
1 Week
Weekal
1 Month
Monthal
3 months
Quarteral
6 months
Semiannual
'Biannual' means twice in a year, but is also commonly used incorrectly to mean once every two years ('biennial').
Biannual
1 year
Annual
Paper
2 years
Biennial
Cotton
'Biennial' means once every two years, but is also commonly used incorrectly to mean 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
121⁄2 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
Diamond is separately used for the 60th anniversary
Demisesquicentennial
80 years
Octogintennial
Oak
Octogenary
85 years
quinoctogennial
90 years
Nonagintennial
Granite
Nonagenary
95 years
quinnonagennial
100 years
Centennial
Centenary
110 years
decaCentennial
120 years
bidecaCentennial
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]
130 years
tridecaCentennial
140 years
quadridecaCentennial
150 years
Sesquicentennial
Term broken down as sesqui- (one and a half) centennial (100 years)
160 years
sexadecaCentennial
170 years
septdecaCentennial
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".[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- (11⁄4) × 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)
180 years
octodecaCentennial
190 years
nonadecaCentennial
200 years
Bicentennial
Bicentenary
225 years
Quasquibicentennial
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]
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).
Term broken down as sesqui- (one and a half) millennial (1000 years)
1600 years
sexacentimillennial
1700 years
septcentimillennial
1800 years
octocentimillennial
1900 years
nonacentimillennial
2000 years
Bimillennial
2100 years
centibimillennial
2200 years
duocentibimillennial
2300 years
tricentibimillennial
2400 years
quadricentibimillennial
2500 years
sesquibimillennial
2600 years
sexacentibimillennial
2700 years
septcentibimillennial
2800 years
octocentibimillennial
2900 years
nonacentibimillennial
3000 years
Trimillennial
3500 years
sesquitrimillennial
4000 years
Quadrimillennial
4500 years
sesquiquadrimillennial
5000 years
Quinmillennial
5500 years
sesquiquinmillennial
6000 years
sexamillennial
6500 years
Sesquisexamillenial
7000 years
septmillennial
7500 years
sesquiseptmillennial
8000 years
octomillennial
8500 years
sesquioctmillennial
9000 years
nonamillennial
9500 years
Sesquinonamillenial
10,000 years
Decamillennial
11,000 years
unDecamillennial
12,000 years
doDecamillennial
13,000 years
treDecamillennial
14,000 years
quattuordecamillennial
15,000 years
quindecimillennial
16,000 years
sexaDecamillennial
17,000 years
septDecamillennial
18,000 years
octoDecamillennial
19,000 years
nonadecamillennial
20,000 years
Vigintimillennial
25,000 years
Quinvigintimillennial
30,000 years
trigintimillenial
35,000 years
Quinteigintimillennial
40,000 years
Quadragintimillennial
45,000 years
Quinquadragintimillenial
50,000 years
Quinagintimillenial
60,000 years
Sexagintimillenial
70,000 years
Septagintimillenial
80,000 years
Octagaintimillenial
90,000 years
nonagintimillenial
100,000 Years
Centimillenial
200,000 Years
bicentimillenial
300,000 Years
tricentimillenial
400,000 Years
quadricentimillenial
500,000 Years
quincentimillenial
1,000,000 Years
Megannual
From megannum
2,000,000 Years
bimegannual
3,000,000 Years
trimegannual
5,000,000 Years
quinmegannual
10,000,000 Years
Decamegannual
20,000,000 Years
duoDecamegannual
50,000,000 years
quindecamegannual
100,000,000 Years
centimegannual
250,000,000 Years
sesquibicentimegannual
500,000,000 Years
quincentimegannual
1,000,000,000 years
Gigannual
5,000,000,000 years
quinGigannual
10,000,000,000 years
decaGigannual
100,000,000,000 years
centiGigannual
1,000,000,000,000 Years
Terannual
10^15 Years
Petannual
10^18 Years
Exannual
10^21 years
Zettannual
10^24 years
Yottannual
10^27 Years
Ronnannual
10^30 years
Quettannual
10^33 Years
Quetkilannual
10^36 years
Quetmegannual
10^39 years
Quetgigannual
10^42 years
Quetterannual
10^45 years
Quetpetannual
10^48 years
Quetexannual
10^51 years
Quetzettannual
10^54 years
Quetyottannual
10^57 years
Quetronnannual
10^60 years
Quetquetannual / Duetannual
10^63 Years
Duetkilannual
10^100 years
Googannual
10^303 years
Centilliannual
Symbols
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.
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.
^ abcd. Clipper Ship 'City of Adelaide'. Archived from the original on 27 November 2013. Retrieved March 8, 2011. So the name for a 175th anniversary? For now it is really up to the preference of the reader. One day one of these terms may make its way into popular usage, become accepted, and find a place in a dictionary.
^Chapman, Robert L. (February 1965). "The History of "Quasquicentennial"". American Speech. 40 (1): 53–57. doi:10.2307/454178. ISSN 0003-1283. JSTOR 454178. It is our policy to reply as courteously and helpfully as we can to such requests, and I answered Mr. Hatten on August 7, suggesting quasquicentennial. Since this is a history, I shall quote the letter in full: Dr. Wilfred Funk has passed your letter of July I on to us. We are happy to help, if you feel that you really want a new Latinate word meaning "one hundred and twenty-fifth anniversary". The best model upon which to form the word is "sesquicentennial", meaning "one hundred and fiftieth anniversary". We need a first element meaning "plus a fourth", analogous with "sesqui" which means "plus a half". "Sesqui" is apparently formed from "semis que", meaning "and a half". Now, both "quarta" and "quadrans" mean "a fourth", so we may begin with either "quarta que" or "quadrans que". The trick is to combine and shorten one of these as "sesqui" was combined and shortened from "semis que". If we follow the model of "sesqui" very closely, retaining the stressed vowel and final "s" of "quadrans", we get the word "quasquicentennial". Combining and shortening in other ways we can also get "quadqui-", "quansqui-", "quarsqui-", and perhaps several others. On the grounds that it is closest to the model and also probably the least ugly of the set, I would choose "quasquicentennial" (pronounced kwahskwee-) as the new word. Of course, you may decide that you do not really want or need a new word. There is no point in proliferating them needlessly. I should add, perhaps, that this word would not appear in any of our dictionaries until it had established itself in wide currency, even if you should decide to use it. I hope we have been able to help you.
^ ab"Under the Cupola". Neighbors of Batavia. July–August 2008. p. 29. The etymology of "demisemiseptcentennial" is compared to "hemidemisemiquaver", a 64th note.
^"Pickle Barrel: 175th-birthday bash planned for Dillsburg." The Patriot-News (Mechanicsburg, Penn.), Wednesday, 18 June 2008.
^"Brown lowers the curtain on 15-month semiquincentenary". Brown University. 2015-06-11. Retrieved 2015-06-11.
^McCleery, William (November 19, 1997). "The Meaning of the 250th". Princeton Alumni Weekly. Princeton University. Retrieved March 23, 2011. Faster, it seems, than you can say "bicenquinquagenary", Princeton's 250th anniversary has come and gone.
^"A Memorial of the Celebration of the Two Hundred and Fiftieth Anniversary of the Settlement of the Town of Northampton, Massachusetts". City of Northampton. Archived from the original on January 27, 2013. Retrieved March 23, 2011.
^Kersten, Glenn (March 1988). . Quidnunc. Archived from the original on 21 January 2005. Retrieved 22 May 2019.
^Architects 49: Selected and Current Work. (The Master Architect Series; 5.) Image Publishing Group, 2006. ISBN978-1-876907-09-9
^"22. The Day of the Wedding. Post, Emily. 1922. Etiquette". bartleby.com.
External links
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January 06, 2023
anniversary, other, uses, disambiguation, this, article, needs, additional, citations, verification, please, help, improve, this, article, adding, citations, reliable, sources, unsourced, material, challenged, removed, find, sources, news, newspapers, books, s. For other uses see Anniversary disambiguation This article needs additional citations for verification Please help improve this article by adding citations to reliable sources Unsourced material may be challenged and removed Find sources Anniversary news newspapers books scholar JSTOR July 2007 Learn how and when to remove this template message 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 On the 40th anniversary of his reign King Carl XVI Gustaf of Sweden toasts the city s Mayor in front of Stockholm Palace Memorial plaque presented by the National Capital Sesquicentennial Commission 1951 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 Contents 1 Names 1 1 Numerical 2 Symbols 3 See also 4 References 5 External linksNames EditBirthdays 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 Numerical Edit This section has multiple issues Please help improve it or discuss these issues on the talk page Learn how and when to remove these template messages This section needs additional citations for verification Please help improve this article by adding citations to reliable sources Unsourced material may be challenged and removed March 2011 Learn how and when to remove this template message This section contains weasel words vague phrasing that often accompanies biased or unverifiable information Such statements should be clarified or removed March 2011 This section possibly contains original research Please improve it by verifying the claims made and adding inline citations Statements consisting only of original research should be removed February 2018 Learn how and when to remove this template message Learn how and when to remove this template message Latin terms for anniversaries are mostly straightforward particularly those relating to the first thirty years 1 30 or multiples of ten years 30 40 50 60 70 etc or multiples of centuries or millenniums 100 200 300 1000 2000 3000 etc In these instances the name of the anniversary is generally derived from the Latin word s for the respective number of years When anniversaries relate to fractions of centuries 125 150 175 225 years i e 1 25 1 5 1 75 and 2 25 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 Comments1 Day Datal1 Week Weekal1 Month Monthal3 months Quarteral6 months Semiannual Biannual means twice in a year but is also commonly used incorrectly to mean once every two years biennial Biannual1 year Annual Paper2 years Biennial Cotton Biennial means once every two years but is also commonly used incorrectly to mean twice in a year biannual 3 years Triennial Leather4 years Quadrennial Linen5 years Quinquennial Wood6 years Sexennial Iron7 years Septennial Wool8 years Octennial Bronze9 years Novennial Copper10 years Decennial TinAluminumDenary11 years Undecennial Steel12 years Duodecennial Silk121 2 years Parsley A humorous or mock wedding anniversary celebrated in Germany and the Netherlands where everyone needs to wear something green13 years Tredecennial Lace14 years Quattuordecennial Ivory15 years Quindecennial Crystal16 years Sexdecennial Sapphire Sapphire is separately used for other anniversaries17 years Septdecennial Orchid18 years Octdecennial Quartz19 years Novdecennial Jade20 years Vigintennial China PorcelainVicennialVicenary21 years unVigintennial22 years duovigintennial23 years trivigintennial24 years quadrivigintennial25 years Quadranscentennial Silver26 years sexavigintennial27 years septvigintennial28 years octovigintennial29 years Nonavigintennial30 years Tricennial PearlTricenary35 years Quintricennial Coral40 years Quadragennial RubyQuadragenary45 years Quinquadragennial Sapphire50 years Semicentennial Golden Previously jubilee by itself was used to indicate celebrations at 50 year intervalsQuinquagenary55 years Quinquinquagennial EmeraldQuinquinquagenary60 years Sexagennial Diamond Diamond is separately used for the 75th anniversary its use for 60th years being popularized by Diamond Jubilee of Queen VictoriaSexagenary65 years Quinsexagennial Sapphire Sapphire is separately used for other anniversaries70 years Septuagennial PlatinumSeptuagenary75 years Semisesquicentennial Diamond Diamond is separately used for the 60th anniversaryDemisesquicentennial80 years Octogintennial OakOctogenary85 years quinoctogennial90 years Nonagintennial GraniteNonagenary95 years quinnonagennial100 years CentennialCentenary110 years decaCentennial120 years bidecaCentennial125 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 2 130 years tridecaCentennial140 years quadridecaCentennial150 years Sesquicentennial Term broken down as sesqui one and a half centennial 100 years 160 years sexadecaCentennial170 years septdecaCentennial175 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 DodransbicentennialDequasbicentennial Alternative Latin form of DodransbicentennialDosquicentennial Dosquicentennial has been used in modern times and this is perhaps a modern contraction of de quadrans 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 11 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 180 years octodecaCentennial190 years nonadecaCentennial200 years BicentennialBicentenary225 years Quasquibicentennial250 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 7 275 years dodranstricentennial300 years TercentenaryTercentennialTricentenaryTricentennial325 years quasquitricentennial350 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 Semiseptcentennial375 years dodransquadricentennial400 years QuadricentennialQuadricentenaryQuatercentenary425 years quasquiquadricentennial450 years Sesquincentennial475 years dodransquincentennial500 years QuincentenaryQuincentennial550 years Sessexacentennial600 years SexcentenarySexacentennial650 years Sesseptcentennial700 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 Septuacentennial750 years Sesoctocentennial800 years OctocentenaryOctocentennial850 years Sesnonacentennial900 years Nonacentennial950 years Sesdecacentennial1000 years Millennial1100 years centimillennial1200 years bicentimillennial1300 years tricentimillennial1400 years quadricentimillennial1500 years Sesquimillennial Term broken down as sesqui one and a half millennial 1000 years 1600 years sexacentimillennial1700 years septcentimillennial1800 years octocentimillennial1900 years nonacentimillennial2000 years Bimillennial2100 years centibimillennial2200 years duocentibimillennial2300 years tricentibimillennial2400 years quadricentibimillennial2500 years sesquibimillennial2600 years sexacentibimillennial2700 years septcentibimillennial2800 years octocentibimillennial2900 years nonacentibimillennial3000 years Trimillennial3500 years sesquitrimillennial4000 years Quadrimillennial4500 years sesquiquadrimillennial5000 years Quinmillennial5500 years sesquiquinmillennial6000 years sexamillennial6500 years Sesquisexamillenial7000 years septmillennial7500 years sesquiseptmillennial8000 years octomillennial8500 years sesquioctmillennial9000 years nonamillennial9500 years Sesquinonamillenial10 000 years Decamillennial11 000 years unDecamillennial12 000 years doDecamillennial13 000 years treDecamillennial14 000 years quattuordecamillennial15 000 years quindecimillennial16 000 years sexaDecamillennial17 000 years septDecamillennial18 000 years octoDecamillennial19 000 years nonadecamillennial20 000 years Vigintimillennial25 000 years Quinvigintimillennial30 000 years trigintimillenial35 000 years Quinteigintimillennial40 000 years Quadragintimillennial45 000 years Quinquadragintimillenial50 000 years Quinagintimillenial60 000 years Sexagintimillenial70 000 years Septagintimillenial80 000 years Octagaintimillenial90 000 years nonagintimillenial100 000 Years Centimillenial200 000 Years bicentimillenial300 000 Years tricentimillenial400 000 Years quadricentimillenial500 000 Years quincentimillenial1 000 000 Years Megannual From megannum2 000 000 Years bimegannual3 000 000 Years trimegannual5 000 000 Years quinmegannual10 000 000 Years Decamegannual20 000 000 Years duoDecamegannual50 000 000 years quindecamegannual100 000 000 Years centimegannual250 000 000 Years sesquibicentimegannual500 000 000 Years quincentimegannual1 000 000 000 years Gigannual5 000 000 000 years quinGigannual10 000 000 000 years decaGigannual100 000 000 000 years centiGigannual1 000 000 000 000 Years Terannual10 15 Years Petannual10 18 Years Exannual10 21 years Zettannual10 24 years Yottannual10 27 Years Ronnannual10 30 years Quettannual10 33 Years Quetkilannual10 36 years Quetmegannual10 39 years Quetgigannual10 42 years Quetterannual10 45 years Quetpetannual10 48 years Quetexannual10 51 years Quetzettannual10 54 years Quetyottannual10 57 years Quetronnannual10 60 years Quetquetannual Duetannual10 63 Years Duetkilannual10 100 years Googannual10 303 years CentilliannualSymbols EditMany 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 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 Holidays portalList of historical anniversaries Quinquennial Neronia Wedding anniversary Death anniversaryReferences Edit a b c d SA 175th Jubilee Clipper Ship City of Adelaide Archived from the original on 27 November 2013 Retrieved March 8 2011 So the name for a 175th anniversary For now it is really up to the preference of the reader One day one of these terms may make its way into popular usage become accepted and find a place in a dictionary Chapman Robert L February 1965 The History of Quasquicentennial American Speech 40 1 53 57 doi 10 2307 454178 ISSN 0003 1283 JSTOR 454178 It is our policy to reply as courteously and helpfully as we can to such requests and I answered Mr Hatten on August 7 suggesting quasquicentennial Since this is a history I shall quote the letter in full Dr Wilfred Funk has passed your letter of July I on to us We are happy to help if you feel that you really want a new Latinate word meaning one hundred and twenty fifth anniversary The best model upon which to form the word is sesquicentennial meaning one hundred and fiftieth anniversary We need a first element meaning plus a fourth analogous with sesqui which means plus a half Sesqui is apparently formed from semis que meaning and a half Now both quarta and quadrans mean a fourth so we may begin with either quarta que or quadrans que The trick is to combine and shorten one of these as sesqui was combined and shortened from semis que If we follow the model of sesqui very closely retaining the stressed vowel and final s of quadrans we get the word quasquicentennial Combining and shortening in other ways we can also get quadqui quansqui quarsqui and perhaps several others On the grounds that it is closest to the model and also probably the least ugly of the set I would choose quasquicentennial pronounced kwahskwee as the new word Of course you may decide that you do not really want or need a new word There is no point in proliferating them needlessly I should add perhaps that this word would not appear in any of our dictionaries until it had established itself in wide currency even if you should decide to use it I hope we have been able to help you a b Under the Cupola Neighbors of Batavia July August 2008 p 29 The etymology of demisemiseptcentennial is compared to hemidemisemiquaver a 64th note Pickle Barrel 175th birthday bash planned for Dillsburg The Patriot News Mechanicsburg Penn Wednesday 18 June 2008 Brown lowers the curtain on 15 month semiquincentenary Brown University 2015 06 11 Retrieved 2015 06 11 McCleery William November 19 1997 The Meaning of the 250th Princeton Alumni Weekly Princeton University Retrieved March 23 2011 Faster it seems than you can say bicenquinquagenary Princeton s 250th anniversary has come and gone A Memorial of the Celebration of the Two Hundred and Fiftieth Anniversary of the Settlement of the Town of Northampton Massachusetts City of Northampton Archived from the original on January 27 2013 Retrieved March 23 2011 Kersten Glenn March 1988 Naming the Anniversaries Quidnunc Archived from the original on 21 January 2005 Retrieved 22 May 2019 Architects 49 Selected and Current Work The Master Architect Series 5 Image Publishing Group 2006 ISBN 978 1 876907 09 9 22 The Day of the Wedding Post Emily 1922 Etiquette bartleby com External links Edit Look up anniversary in Wiktionary the free dictionary Wikimedia Commons has media related to Anniversaries Retrieved from https en wikipedia org w index php title Anniversary amp oldid 1131312734, wikipedia, wiki, book, books, library,