Century

A century (from the Latin centum, meaning one hundred; abbreviated c.[1]) is a period of 100 years. Centuries are numbered ordinally in English and many other languages.

A 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 in the Gregorian calendar

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 perspective (general usage).

According to the strict construction of the Gregorian calendar, the 1st century AD began with 1 AD and ended with 100 AD, with the same pattern continuing onward. In this model, the n-th century started/will start on the year (100 × n) − 99 and ends in 100 × n. Because of this, a century will only include one year, the centennial year, that starts with the century's number (e.g. 1900 was the last year of the 19th century).[2]

In general usage, centuries are aligned with decades by grouping years based on their shared digits. In this model, the 'n' -th century started/will start on the year (100 x n) - 100 and ends in (100 x n) - 1. For example, the 20th century is generally regarded as from 1900 to 1999, inclusive. This is sometimes known as the odometer effect. The astronomical year numbering and ISO 8601 systems both contain a year zero, so the first century begins with the year zero, rather than the year one.[3]

Viewpoint 1: Strict usage

2 BC 1 BC 1 2 3 4 5 ... 96 97 98 99 100 101 102 103 ... 198 199 200 ... 1901 1902 ... 1998 1999 2000 2001 2002 2003 ... 2098 2099 2100 2101 2102 2103 ... 2198 2199 2200
1st century 2nd century ... 20th century 21st century 22nd century

Viewpoint 2: General usage

2 BC 1 BC 1 2 3 4 5 ... 96 97 98 99 100 101 102 103 ... 198 199 ... 1900 1901 1902 ... 1998 1999 2000 2001 2002 2003 ... 2098 2099 2100 2101 2102 2103 ... 2198 2199
1st century 2nd century ... 20th century 21st century 22nd century
Other Languages
Afrikaans: Eeu
Alemannisch: Jahrhundert
Ænglisc: Hundgēar
العربية: قرن (زمن)
aragonés: Sieglo
ܐܪܡܝܐ: ܕܪܐ
asturianu: Sieglu
Avañe'ẽ: Sa ro'y
авар: ГІасру
azərbaycanca: Əsr
Bân-lâm-gú: Sè-kí
Basa Banyumasan: Abad
башҡортса: Быуат
беларуская: Стагоддзе
беларуская (тарашкевіца)‎: Стагодзьдзе
български: Век
Boarisch: Centenary
bosanski: Vijek
brezhoneg: Kantved
català: Segle
Чӑвашла: Ĕмĕр
čeština: Století
chiShona: Mukorezana
Cymraeg: Canrif
davvisámegiella: Jahkečuohti
Deutsch: Jahrhundert
eesti: Sajandid
Ελληνικά: Αιώνας
emiliàn e rumagnòl: Sècol
español: Siglo
Esperanto: Jarcento
euskara: Mende
فارسی: سده
français: Siècle
Frysk: Iuw
Gaeilge: Aois
galego: Século
ГӀалгӀай: БIаь шу
客家語/Hak-kâ-ngî: Sṳ-ki
한국어: 세기
հայերեն: Դար
हिन्दी: शताब्दी
hornjoserbsce: Lětstotk
hrvatski: Stoljeće
Ilokano: Siglo
Bahasa Indonesia: Abad
interlingua: Seculo
íslenska: Öld
italiano: Secolo
עברית: מאה (זמן)
Basa Jawa: Abad
ಕನ್ನಡ: ಶತಮಾನ
къарачай-малкъар: Ёмюр
ქართული: საუკუნე
қазақша: Ғасыр
Kiswahili: Karne
Kreyòl ayisyen: Syèk
kurdî: Sedsal
Кыргызча: Кылым
Latina: Saeculum
latviešu: Gadsimts
Lëtzebuergesch: Joerhonnert
lietuvių: Šimtmetis
Limburgs: Ieëf
lingála: Bonkámá
la .lojban.: ctona'a
lumbaart: Secol
magyar: Évszázad
македонски: Век
Malagasy: Taonjato
മലയാളം: നൂറ്റാണ്ട്
मराठी: शतक
მარგალური: ოშწანურა
مصرى: قرن
Bahasa Melayu: Abad
Baso Minangkabau: Abaik
Mìng-dĕ̤ng-ngṳ̄: Sié-gī
монгол: Зуун
မြန်မာဘာသာ: ရာစုနှစ်
Nederlands: Eeuw
Nedersaksies: Eyw
नेपाली: शताब्दी
日本語: 世紀
Norfuk / Pitkern: Centurii
norsk: Århundre
norsk nynorsk: Hundreår
Nouormand: Syiclle
occitan: Sègle
oʻzbekcha/ўзбекча: Asr
ਪੰਜਾਬੀ: ਸਦੀ
پنجابی: صدی
پښتو: پېړۍ
polski: Wiek
português: Século
română: Secol
Romani: Shelbersh
Runa Simi: Pachakwata
русиньскый: Стороча
русский: Век
саха тыла: Үйэ
Scots: Centurie
Sesotho sa Leboa: Ngwagakgolo
sicilianu: Sèculu
සිංහල: සියවස
Simple English: Century
سنڌي: صدي
slovenčina: Storočie
slovenščina: Stoletje
Soomaaliga: Qarni
کوردی: سەدە
српски / srpski: Век
srpskohrvatski / српскохрватски: Vijek
Basa Sunda: Abad
suomi: Vuosisata
svenska: Sekel
Tagalog: Daang taon
татарча/tatarça: Гасыр
тоҷикӣ: Аср
Türkçe: Yüzyıl
тыва дыл: Век
українська: Століття
اردو: صدی
Vahcuengh: Seiqgeij
vèneto: Secoło
Tiếng Việt: Thế kỷ
Volapük: Yelataib
文言: 世紀
Winaray: Gatostuig
吴语: 世纪
ייִדיש: יארהונדערט
Yorùbá: Ọ̀rúndún
粵語: 世紀
Zazaki: Seserre
Zeêuws: Eêuw
žemaitėška: Omžios
中文: 世纪