翻訳と辞書 Words near each other ・ Er'el ・ Er-Rich ・ ER-Telecom ・ Er. Mayadhar Swain ・ ER/Studio ・ ER1 ・ ER1 electric trainset ・ ER2 ・ ER2 (Kanjani Eight song) ・ ER2 electric trainset ・ ER200 ・ ER24 Emergency Medical Services ・ ER9 electric trainset ・ ER=EPR ・ ERA ・ Era ・ Era (album) ・ Era (Disappears album) ・ Era (Echo Lake album) ・ Era (Elvenking album) ・ Era (geology) ・ Era (musical project) ・ Era (publisher) ・ Era (river) ・ Era (song) ・ Era 2 ・ Era Aviation ・ Era Baru ・ Era Bator Sur ・ Era Bell Thompson Dictionary Lists mini英和辞書 mini和英辞書 Webster 1913 Latin-English FOLDOC Wikipedia English ウィキペディア

翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Era ： ウィキペディア英語版 Era An era is a span of time marked by character, events, changes on earth, etc. When used in science, for example geology, an ''era'' denotes a clearly defined period of time of arbitrary but well-defined length, such as for example the Mesozoic Era from 252 Ma–66 Ma, delimited by a start event and an end event. When used in social history, eras may for example denote a period of some monarch's reign. In colloquial language, eras denote longer spans of time, before and after which the practices or fashions change to a significant degree. When era is extended to a calendar system, it is known as a calendar era. In Sanskrit or Indian culture eras are known as Yugas. ==Uses== In chronology, an era is the highest level for the organization of the measurement of time. A calendar era indicates a span of many years which are numbered beginning at a specific reference date (epoch), which often marks the origin of a political state or cosmology, dynasty, ruler, the birth of a leader, or another significant historical or mythological event; it is generally called after its focus accordingly as in ''Victorian era''. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Era」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.