Decade 695530 224853336 2008-07-10T18:33:08Z Octahedron80 569827 {{dablink|For other senses of this word, see [[decade (disambiguation)]].}} A '''decade''' is a period of 10 [[year]]s (since 1594)[http://www.etymonline.com/index.php?term=decade], a [[Decade (log scale)|factor of 10 difference between two numbers]], or sometimes a set or a group of ten (since 1451). It is also a period of 10 days in the [[French Republican calendar]]. The word is derived from the late [[Latin]] "decas", from Greek "dekas", from deka. The other English words for periods of several years also come from Latin: [[lustrum]] (5), [[century]] (100), [[millennium]] (1000). In English the word can be used to specify a general period of ten years, for example "The last decade was characterized by the rise of the [[Internet]]". A decade may also be a well-defined historical period of ten years in a dating system. In that sense, the first decade of the 20th century indicates a period from January 1, 1901 until December 31, 1910. == See also == * [[List of decades]] {{Time measurement and standards}} [[Category:Units of time]] {{standard-stub}} [[als:Jahrzehnt]] [[an:Dezenio]] [[be-x-old:Дзесяцігодзьдзі]] [[bs:Decenija]] [[ca:Dècada]] [[da:Årti]] [[de:Jahrzehnt]] [[et:Aastakümned]] [[es:Década]] [[eo:Jardekoj]] [[eu:Hamarkada]] [[fa:دهه]] [[fr:Décennie]] [[fy:Desennium]] [[gl:Década]] [[ko:연대 (연도)]] [[hr:Desetljeće]] [[io:Yardeko]] [[id:Dasawarsa]] [[is:Áratugur]] [[it:Decennio]] [[ka:ათწლეული]] [[ht:Deseni]] [[la:Decennium]] [[lv:Desmitgade]] [[lt:Dešimtmečiai]] [[ml:ദശാബ്ദങ്ങള്‍]] [[ms:Dekad]] [[nah:Mahtlācxihuitl]] [[nl:Decennium]] [[ja:10年紀]] [[no:Tiår]] [[pl:Dziesięciolecie]] [[pt:Década]] [[ro:Decenii]] [[ru:Десятилетие]] [[sq:Dekada]] [[simple:Decade]] [[sl:Seznam desetletij]] [[sr:Десетлеће]] [[fi:Luettelo vuosikymmenistä]] [[sv:Decennium]] [[ta:பத்தாண்டு]] [[th:ทศวรรษ]] [[zh:年代]]