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.
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
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 years 1901 to 2000, in strict usage, comprise the 20th century.
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"; for example, the years 1900 to 1999, in popular culture, comprise the 20th century. (This is similar to the grouping of "0-to-9 decades" which share the 'tens' digit.) 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.
|Year||2 BC||1 BC||1||2||...||99||100||101||102||...||199||200||201||202||...||1899||1900||1901||1902||...||1999||2000||2001||2002||...||2099||2100||2101||2102||...|
|Strict||1st century BC||1st century||2nd century||3rd century||...||19th century||20th century||21st century||22nd century||...|
|Popular||1st century BC||1st century||2nd century||3rd century||...||19th century||20th century||21st century||22nd century||...|
Alternative naming systems
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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
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, while the Aztec calendar considers groups of 52.
|Look up century in Wiktionary, the free dictionary.|
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- Age of Discovery
- Ancient history
- Before Christ
- Common Era
- List of decades, centuries, and millennia
- Middle Ages
- Modern era
- "Oxford English Dictionary – List of Abbreviations".
- "When Did the 21st Century Start?". timeanddate.com. Retrieved 23 November 2020.
- "century". Oxford Dictionaries. Retrieved 20 January 2021.
- "Centuries and How to Refer to Them". Merriam-Webster. Retrieved 27 April 2021.
- "Calendars". L.E. Doggett. Retrieved 27 April 2021.
- "Year Dating Conventions". National Aeronautics and Space Administration. Retrieved 27 April 2021.
- "www.vedavidyalaya.com". Archived from the original on 17 December 2013. Retrieved 4 September 2013.
- "www.aztec-history.com". Retrieved 4 September 2013.