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The Holocene calendar, also known as the Holocene Era or Human Era (HE), is a year numbering system that adds exactly 10,000 years to the currently dominant (AD/BC or CE/BCE) numbering scheme, placing its first year near the beginning of the Holocene geological epoch and the Neolithic Revolution, when humans shifted from a hunter-gatherer lifestyle to agriculture and fixed settlements.
The Holocene calendar, devised by Cesare Emiliani in 1993, places its epoch at 10,000 BC (with the year 2024 being rendered as 12024 HE). The Human Era calendar attempts to simplify the calculation of time spans across the BC-CE divide by designating a more universally relevant epoch date: the start of human settlements (instead of the birth of ...
The Holocene ( / ˈhɒl.əsiːn, - oʊ -, ˈhoʊ.lə -, - loʊ -/) [ 2][ 3] is the current geological epoch, beginning approximately 11,700 years ago. [ 4] It follows the Last Glacial Period, which concluded with the Holocene glacial retreat. [ 4] The Holocene and the preceding Pleistocene [ 5] together form the Quaternary period.
A calendar era is the period of time elapsed since one epoch of a calendar and, if it exists, before the next one. [1] For example, it is the year 2024 as per the Gregorian calendar, which numbers its years in the Western Christian era (the Coptic Orthodox and Ethiopian Orthodox churches have their own Christian eras).
The Holocene Climate Optimum (HCO) was a warm period in the first half of the Holocene epoch, that occurred in the interval roughly 9,500 to 5,500 years BP, [ 1] with a thermal maximum around 8000 years BP. It has also been known by many other names, such as Altithermal, Climatic Optimum, Holocene Megathermal, Holocene Optimum, Holocene Thermal ...
The Holocene begins at 11.700 bk2 (before AD 2000) or 11.650 BP (Befoer Present= before AD 1950) or 9.700 BC or ca. 10.000 14 C BP, see: Formal definition and dating of the GSSP (Global Stratotype Section and Point) for the base of the Holocene using the Greenland NGRIP ice core, and selected auxiliary records I infer that this "Holocene Era ...
Gregorian calendar. The Gregorian calendar is the calendar used in most parts of the world. [ 1][ a] It went into effect in October 1582 following the papal bull Inter gravissimas issued by Pope Gregory XIII, which introduced it as a modification of, and replacement for, the Julian calendar. The principal change was to space leap years ...
For example, a date Anno Domini (AD) 2024 becomes Anno Lucis (AL) 6024. [1] This calendar era, which would designate 4001 BC as 'year zero', was adopted in the 18th century as a simplification of the Anno Mundi era dating system used in the Hebrew calendar and borrowing from other ideas of that time regarding the year of creation.
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