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The Holocene calendar, also known as the Holocene Era (HE) or Human era, is a year numbering system that adds exactly 10,000 years to the currently world-dominant Common Era ''Anno Domini'', placing its first year near the beginning of the Holocene epoch and the Neolithic revolution. The ''Human Era'' was first proposed by the scientist Cesare Emiliani in 1993.〔Cesare Emiliani, "(Calendar Reform )", ''Nature'' 366 (1993) 716.〕〔(The Holocene Calendar ) at Meerkat Meade.〕〔(Human Era Calendar ) by Harry Weseman.〕 ==Motivation== Cesare Emiliani's proposal for a calendar reform sought to solve a number of alleged problems with the current ''Anno Domini'' era, which number the years of the commonly accepted world calendar. These issues include: *The ''Anno Domini'' era is based on an erroneous estimation of the birth year of Jesus. The era places Jesus' birth year in 1 BC, but modern scholars have determined that he was born in or before 4 BC. Emiliani argues that replacing it with the approximate beginning of the Holocene era makes sense. *The birth of Jesus is a less universally relevant epoch event than the approximate beginning of the Holocene era. *The years BC are counted down when moving from past to future, making calculation of timespans difficult. *The ''Anno Domini'' era has no year zero, with 1 BC followed immediately by AD 1, complicating the calculation of timespans further. Instead, HE places its epoch to 10,000 BC. This is a rough approximation of the start of the current geologic epoch, the Holocene (the name means ''entirely recent''). The motivation for this is that human civilization (e.g. the first settlements, agriculture, etc.) is believed to have arisen within this time. 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「Holocene calendar」の詳細全文を読む スポンサード リンク
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