ஓன்று, இரண்டு,இருபத்தைந்து, நூறு!

பொதுவாக இருபத்தைந்து வருடம் நிறைந்தால் வெள்ளி விழா, ஐம்பது வருடம் நிறைந்தால் பொன் விழா என்ற பெயருடன் கொண்டாடுவது அனைவருக்கும் தெரியும், இவை தவிர பிற வருடங்களுக்குரிய விழாக்களுக்கும் பெயர் உண்டு அவை .. ஒரு வருடம் நிறைந்தால் காகித விழா ஐந்து வருடம் நிறைந்தால் மர விழா பத்து வருடம் நிறைந்தால் தகரம் அல்லது அலுமினிய விழா பதினைந்து வருடம் நிறைந்தால் படிக விழா இருபது வருடம் நிறைந்தால் பீங்கான் விழா இருபத்தைந்து வருடம் நிறைந்தால் வெள்ளி விழா முப்பது வருடம் நிறைந்தால் முத்து விழா நாற்பது வருடம் நிறைந்தால் மாணிக்க விழா ஐம்பது வருடம் நிறைந்தால் பொன் விழா அறுபது வருடம் நிறைந்தால் வைர விழா எழுபத்தைந்து வருடம் நிறைந்தால் பவள விழா நூறு வருடம் நிறைந்தால் நூற்றாண்டு விழா.

Anniversary	Preferred Term	Other Terms	Comments
1/2 yearly	Biannual
1 year	Annual	Paper
2 years	Biennial	Cotton
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/Aluminium
11 years	Undecennial	Steel
12 years	Duodecennial	Silk
13 years	Tredecennial	Lace
14 years	Quattuordecennial	Ivory
15 years	Quindecennial	Crystal
20 years	Vigintennial / Vicennial	China/Porcelain
25 years	Quadranscentennial	Silver Jubilee	Probably a modern coined term.
50 years	Semicentennial / Quinquagenary	Golden Jubilee
60 years	Sexagennial / Sexagenary	Diamond Jubilee of monarchs
70 years	Septuagennial	Platinum Jubilee of monarchs
75 years	Dodranscentennial	Diamond Jubilee	Dodrans is a Latin contraction of de-quadrans which means "a whole unit less a quarter" (de means "from"; quadrans means "quarter". 75 years is a quarter century less than a whole century or 75 = (-25 + 100).[1]
		Dodracentennial	Alternative Latin form of Dodranscentennial
		Dequascentennial	Alternative Latin form of Dodranscentennial
		Semisesquicentennial	Probably[attribution needed] a modern coined term. Demisesquicentennial or Hemisesquicentennialis are other similar variants.
100 years	Centennial	Centenary / platinum jubilee
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 or 175 = (-25 + 200).[1]
		Dodrabicentennial	Alternative Latin form of Dodransbicentennial
		Dequasbicentennial	Alternative Latin form of Dodransbicentennial
		Dosquicentennial	Dosquicentennial has been used in modern times[3] 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-) x one-half (semi-) x seven (sept-) x 100 years (centennial)—also demisemiseptcentenary.[4][5]
		Quartoseptcentennial	Probably[attribution needed] a modern coined term: quartoseptcentennial; literally one-quarter (quarto-) x seven (sept-) x 100 years (centennial)—also quartoseptcentenary.[6]
		Terquasquicentennial	First used by Bell Laboratories in celebrating its 175th anniversary as a corporation.[citation needed] Is 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- (1¼) × centennial (100 years)
		Septaquintaquinque- centennial	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
250 years	Sestercentennial	-	To express 2½ 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
		Bicenquinquagenary	Used by Princeton University in 1996, Reading, Pennsylvania in 1998, and Washington and Lee University in 1999.[7] It is a coined word for an anniversary of 250 years, but the elements of the word literally refer to an anniversary of 10,000 years, as follows: bi- (2) × cen(t)- (100) × quinquagenary (50 years)
		Quarter-millennial	Meaning one fourth of one thousand years.[8]
300 years	Tercentennial	Tricentennial
350 years	Sesquarcentennial	-	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.
		Semiseptcentennial	Probably[attribution needed] a modern coined term: semi- (half) × sept(7) × cen(t)- (100) × centennial (350 years)
400 years	Quadricentennial	Quatercentenary
500 years	Quincentennial
600 years	Sexcentennial
700 years	Septcentennial	Septuacentennial	Probably[attribution needed] a coined term; earliest known use in March 1988.[9] Chiang Mai Septcentennial Stadium (Chiang Mai, Thailand) was completed in 1991.[10]
800 years	Octocentennial
900 years	Nonacentennial
1000 years	Millennial
2000 years	Bimillennial