What is Calendar era?
{{Year in various calendars|year={{CURRENTYEAR}} }} A '''calendar era''' is the '''year numbering''' system used by a [[calendar]]. The [[Gregorian calendar]] for example numbers its years in the Western [[Anno Domini]] system (the [[Coptic Orthodox Church|Coptic Orthodox]] and [[Ethiopian Orthodox Church|Ethiopian Orthodox]] churches have their own Christian eras). The instant, date, or year from which time is marked is called the ''[[epoch (reference date)|epoch]]'' of the era. There are many different calendar eras such as [[Saka Era]]. In ancient times, [[regnal year]]s were counted from the year a new monarch took the throne. This makes ancient timelines very difficult to reconstruct, because they are based on separate and scattered king lists, such as the [[Sumerian King List]] and the Babylonian [[Canon of Kings]]. In [[East Asia]], having [[era name]]s based on ruling monarchs ended in the [[20th century]] except for [[Japan]], where they are still used. ==References== {{Reflist}} {{Authority control}} {{DEFAULTSORT:Calendar Era}} [[Category:Chronology]]