The
Human Era, also known as the
Holocene calendar or
Holocene era (HE), is a year numbering system that adds exactly 10,000 years to the currently world-dominant
Anno Domini and Before Christ are designations used to label or number years used with the Julian and Gregorian calendars....
(AD) and
Common EraCommon Era ,abbreviated as CE, is an alternative designation for the calendar era originally introduced by Dionysius Exiguus in the 6th century, traditionally identified with Anno Domini .Dates before the year 1 CE are indicated by the usage of BCE, short for Before the Common Era Common Era...
(CE) system, placing its first year near the beginning of the
HoloceneThe Holocene is a geological epoch which began at the end of the Pleistocene and continues to the present. The Holocene is part of the Quaternary period. Its name comes from the Greek words and , meaning "entirely recent"...
epoch and the
Neolithic revolutionThe Neolithic Revolution was the first agricultural revolution. It was the transition from hunting and gathering to agriculture and settlement. Archaeological data indicates that various forms of plants and animal domestication evolved independently in 6 separate locations worldwide circa...
. Human Era proponents claim that it makes for easier geological, archaeological, dendrochronological and historical dating, as well as that it bases its epoch on a more universally relevant event. The current year of AD can be transformed into a Holocene year by adding the digit "1" before it, making it 1 HE. The
Human Era was first proposed by scientist,
Cesare EmilianiCesare Emiliani was an Italian-American scientist, considered one of the greatest geologists and micropaleontologists of the 20th century and the founder of paleoceanography, developing the timescale of marine isotope stages, which despite modifications remains in very wide use today.He...
in 1993 .
Motivation
Cesare Emiliani's proposal for a
calendar reformA calendar reform is any significant revision of a calendar system. The term sometimes is used instead for a proposal to switch to a different calendar.Most calendars have several rules which could be altered by reform:...
sought to solve a number of claimed problems with the current
Anno Domini era, which number the years of the commonly accepted world calendar. These issues include:
- The Anno Domini era (or Common Era) is based on an erroneous estimation of the birth year of Jesus Christ
Jesus of Nazareth , commonly referred to as Jesus Christ or simply as Jesus or Christ, is the central figure of Christianity...
. The era places Jesus' birth year in 1 BC, but modern scholars have determined that he was born in either 6 AD or before 3 BC.
- The approximate birth year of Jesus is seen by some as a less universally-relevant epoch event
In the fields of chronology and periodization, an epoch is an instance in time chosen as the origin of a particular era. The "epoch" then serves as a reference point from which time is measured...
than the approximate beginning of the Holocene epoch.
- BC years are counted down when moving from past to future, thus 44 BC is after 250 BC
- The Gregorian calendar has no year zero
"Year zero" does not exist in the widely used Gregorian calendar or in its predecessor, the Julian calendar. Under those systems, the year 1 BC is followed by AD 1...
, with 1 BC followed immediately by AD 1, complicating the determination of the interval between years on opposite sides of the BC/AD era marker. Many historical lives and regimes span that marker.
Instead, HE places its
epochIn the fields of chronology and periodization, an epoch is an instance in time chosen as the origin of a particular era. The "epoch" then serves as a reference point from which time is measured...
or year one of the current
eraAn era is a commonly used word for long period of time. When used in science, for example geology, eras denote clearly defined periods 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...
to 10,000 BC. This is a rough approximation of the start of the current
geologic epochAn epoch is a subdivision of the geologic timescale based on rock layering. In order, the higher subdivisions are periods, eras and eons. We are currently living in the Holocene epoch...
, the
HoloceneThe Holocene is a geological epoch which began at the end of the Pleistocene and continues to the present. The Holocene is part of the Quaternary period. Its name comes from the Greek words and , meaning "entirely recent"...
(the name means
entirely recent). The motivation for this is that human civilization (e.g., the first settlements,
agricultureAgriculture is the cultivation of animals, plants, fungi and other life forms for food, fiber, and other products used to sustain life. Agriculture was the key implement in the rise of sedentary human civilization, whereby farming of domesticated species created food surpluses that nurtured the...
, etc.) is believed to have arisen entirely within this time. All key dates in human history can then be listed using a simple increasing date scale with smaller dates always occurring before larger dates.
Conversion
Conversion to the Human Era from Julian or Gregorian AD years can be achieved by adding 10,000. BC years are converted by subtracting the BC year from 10,001.
A useful validity check is that the last single digits of BC and HE equivalent pairs must add up to 1 or 11.
{|
|-
|
Gregorian years
|
Human Era Holocene Epoch
|-
| c. 30000 BC
| c. 20000 BHE
|-
| 10001 BC
| 0 HE
|-
| 10000 BC
| 1 HE
|-
| 2 BC
| 9999 HE
|-
| 1 BC
| 10000 HE
|-
|
AD and Before Christ are designations used to label or number years used with the Julian and Gregorian calendars....
1
| 10001 HE
|-
| AD 2
| 10002 HE
|-
| AD
{{redirect3|Holocene era|For the geological epoch, see
HoloceneThe Holocene is a geological epoch which began at the end of the Pleistocene and continues to the present. The Holocene is part of the Quaternary period. Its name comes from the Greek words and , meaning "entirely recent"...
}}
The
Human Era, also known as the
Holocene calendar or
Holocene era (HE), is a year numbering system that adds exactly 10,000 years to the currently world-dominant
Anno Domini and Before Christ are designations used to label or number years used with the Julian and Gregorian calendars....
(AD) and
Common EraCommon Era ,abbreviated as CE, is an alternative designation for the calendar era originally introduced by Dionysius Exiguus in the 6th century, traditionally identified with Anno Domini .Dates before the year 1 CE are indicated by the usage of BCE, short for Before the Common Era Common Era...
(CE) system, placing its first year near the beginning of the
HoloceneThe Holocene is a geological epoch which began at the end of the Pleistocene and continues to the present. The Holocene is part of the Quaternary period. Its name comes from the Greek words and , meaning "entirely recent"...
epoch and the
Neolithic revolutionThe Neolithic Revolution was the first agricultural revolution. It was the transition from hunting and gathering to agriculture and settlement. Archaeological data indicates that various forms of plants and animal domestication evolved independently in 6 separate locations worldwide circa...
. Human Era proponents claim that it makes for easier geological, archaeological, dendrochronological and historical dating, as well as that it bases its epoch on a more universally relevant event. The current year of {{currentyear}} AD can be transformed into a Holocene year by adding the digit "1" before it, making it 1{{currentyear}} HE. The
Human Era was first proposed by scientist,
Cesare EmilianiCesare Emiliani was an Italian-American scientist, considered one of the greatest geologists and micropaleontologists of the 20th century and the founder of paleoceanography, developing the timescale of marine isotope stages, which despite modifications remains in very wide use today.He...
in 1993 {{nowrap|(11993 HE)}}.
Motivation
Cesare Emiliani's proposal for a
calendar reformA calendar reform is any significant revision of a calendar system. The term sometimes is used instead for a proposal to switch to a different calendar.Most calendars have several rules which could be altered by reform:...
sought to solve a number of claimed problems with the current
Anno Domini era, which number the years of the commonly accepted world calendar. These issues include:
- The Anno Domini era (or Common Era) is based on an erroneous estimation of the birth year of Jesus Christ
Jesus of Nazareth , commonly referred to as Jesus Christ or simply as Jesus or Christ, is the central figure of Christianity...
. The era places Jesus' birth year in 1 BC, but modern scholars have determined that he was born in either 6 AD or before 3 BC.
- The approximate birth year of Jesus is seen by some as a less universally-relevant epoch event
In the fields of chronology and periodization, an epoch is an instance in time chosen as the origin of a particular era. The "epoch" then serves as a reference point from which time is measured...
than the approximate beginning of the Holocene epoch.
- BC years are counted down when moving from past to future, thus 44 BC is after 250 BC
- The Gregorian calendar has no year zero
"Year zero" does not exist in the widely used Gregorian calendar or in its predecessor, the Julian calendar. Under those systems, the year 1 BC is followed by AD 1...
, with 1 BC followed immediately by AD 1, complicating the determination of the interval between years on opposite sides of the BC/AD era marker. Many historical lives and regimes span that marker.
Instead, HE places its
epochIn the fields of chronology and periodization, an epoch is an instance in time chosen as the origin of a particular era. The "epoch" then serves as a reference point from which time is measured...
or year one of the current
eraAn era is a commonly used word for long period of time. When used in science, for example geology, eras denote clearly defined periods 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...
to 10,000 BC. This is a rough approximation of the start of the current
geologic epochAn epoch is a subdivision of the geologic timescale based on rock layering. In order, the higher subdivisions are periods, eras and eons. We are currently living in the Holocene epoch...
, the
HoloceneThe Holocene is a geological epoch which began at the end of the Pleistocene and continues to the present. The Holocene is part of the Quaternary period. Its name comes from the Greek words and , meaning "entirely recent"...
(the name means
entirely recent). The motivation for this is that human civilization (e.g., the first settlements,
agricultureAgriculture is the cultivation of animals, plants, fungi and other life forms for food, fiber, and other products used to sustain life. Agriculture was the key implement in the rise of sedentary human civilization, whereby farming of domesticated species created food surpluses that nurtured the...
, etc.) is believed to have arisen entirely within this time. All key dates in human history can then be listed using a simple increasing date scale with smaller dates always occurring before larger dates.
Conversion
Conversion to the Human Era from Julian or Gregorian AD years can be achieved by adding 10,000. BC years are converted by subtracting the BC year from 10,001.
A useful validity check is that the last single digits of BC and HE equivalent pairs must add up to 1 or 11.
{| {{fintabell}}
|-
|
Gregorian years
|
Human Era Holocene Epoch
|-
| c. 30000 BC
| c. 20000 BHE
|-
| 10001 BC
| 0 HE
|-
| 10000 BC
| 1 HE
|-
| 2 BC
| 9999 HE
|-
| 1 BC
| 10000 HE
|-
|
AD and Before Christ are designations used to label or number years used with the Julian and Gregorian calendars....
1
| 10001 HE
|-
| AD 2
| 10002 HE
|-
| AD
{{redirect3|Holocene era|For the geological epoch, see
HoloceneThe Holocene is a geological epoch which began at the end of the Pleistocene and continues to the present. The Holocene is part of the Quaternary period. Its name comes from the Greek words and , meaning "entirely recent"...
}}
The
Human Era, also known as the
Holocene calendar or
Holocene era (HE), is a year numbering system that adds exactly 10,000 years to the currently world-dominant
Anno Domini and Before Christ are designations used to label or number years used with the Julian and Gregorian calendars....
(AD) and
Common EraCommon Era ,abbreviated as CE, is an alternative designation for the calendar era originally introduced by Dionysius Exiguus in the 6th century, traditionally identified with Anno Domini .Dates before the year 1 CE are indicated by the usage of BCE, short for Before the Common Era Common Era...
(CE) system, placing its first year near the beginning of the
HoloceneThe Holocene is a geological epoch which began at the end of the Pleistocene and continues to the present. The Holocene is part of the Quaternary period. Its name comes from the Greek words and , meaning "entirely recent"...
epoch and the
Neolithic revolutionThe Neolithic Revolution was the first agricultural revolution. It was the transition from hunting and gathering to agriculture and settlement. Archaeological data indicates that various forms of plants and animal domestication evolved independently in 6 separate locations worldwide circa...
. Human Era proponents claim that it makes for easier geological, archaeological, dendrochronological and historical dating, as well as that it bases its epoch on a more universally relevant event. The current year of {{currentyear}} AD can be transformed into a Holocene year by adding the digit "1" before it, making it 1{{currentyear}} HE. The
Human Era was first proposed by scientist,
Cesare EmilianiCesare Emiliani was an Italian-American scientist, considered one of the greatest geologists and micropaleontologists of the 20th century and the founder of paleoceanography, developing the timescale of marine isotope stages, which despite modifications remains in very wide use today.He...
in 1993 {{nowrap|(11993 HE)}}.
Motivation
Cesare Emiliani's proposal for a
calendar reformA calendar reform is any significant revision of a calendar system. The term sometimes is used instead for a proposal to switch to a different calendar.Most calendars have several rules which could be altered by reform:...
sought to solve a number of claimed problems with the current
Anno Domini era, which number the years of the commonly accepted world calendar. These issues include:
- The Anno Domini era (or Common Era) is based on an erroneous estimation of the birth year of Jesus Christ
Jesus of Nazareth , commonly referred to as Jesus Christ or simply as Jesus or Christ, is the central figure of Christianity...
. The era places Jesus' birth year in 1 BC, but modern scholars have determined that he was born in either 6 AD or before 3 BC.
- The approximate birth year of Jesus is seen by some as a less universally-relevant epoch event
In the fields of chronology and periodization, an epoch is an instance in time chosen as the origin of a particular era. The "epoch" then serves as a reference point from which time is measured...
than the approximate beginning of the Holocene epoch.
- BC years are counted down when moving from past to future, thus 44 BC is after 250 BC
- The Gregorian calendar has no year zero
"Year zero" does not exist in the widely used Gregorian calendar or in its predecessor, the Julian calendar. Under those systems, the year 1 BC is followed by AD 1...
, with 1 BC followed immediately by AD 1, complicating the determination of the interval between years on opposite sides of the BC/AD era marker. Many historical lives and regimes span that marker.
Instead, HE places its
epochIn the fields of chronology and periodization, an epoch is an instance in time chosen as the origin of a particular era. The "epoch" then serves as a reference point from which time is measured...
or year one of the current
eraAn era is a commonly used word for long period of time. When used in science, for example geology, eras denote clearly defined periods 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...
to 10,000 BC. This is a rough approximation of the start of the current
geologic epochAn epoch is a subdivision of the geologic timescale based on rock layering. In order, the higher subdivisions are periods, eras and eons. We are currently living in the Holocene epoch...
, the
HoloceneThe Holocene is a geological epoch which began at the end of the Pleistocene and continues to the present. The Holocene is part of the Quaternary period. Its name comes from the Greek words and , meaning "entirely recent"...
(the name means
entirely recent). The motivation for this is that human civilization (e.g., the first settlements,
agricultureAgriculture is the cultivation of animals, plants, fungi and other life forms for food, fiber, and other products used to sustain life. Agriculture was the key implement in the rise of sedentary human civilization, whereby farming of domesticated species created food surpluses that nurtured the...
, etc.) is believed to have arisen entirely within this time. All key dates in human history can then be listed using a simple increasing date scale with smaller dates always occurring before larger dates.
Conversion
Conversion to the Human Era from Julian or Gregorian AD years can be achieved by adding 10,000. BC years are converted by subtracting the BC year from 10,001.
A useful validity check is that the last single digits of BC and HE equivalent pairs must add up to 1 or 11.
{| {{fintabell}}
|-
|
Gregorian years
|
Human Era Holocene Epoch
|-
| c. 30000 BC
| c. 20000 BHE
|-
| 10001 BC
| 0 HE
|-
| 10000 BC
| 1 HE
|-
| 2 BC
| 9999 HE
|-
| 1 BC
| 10000 HE
|-
|
AD and Before Christ are designations used to label or number years used with the Julian and Gregorian calendars....
1
| 10001 HE
|-
| AD 2
| 10002 HE
|-
| AD {{ #expr:
{{redirect3|Holocene era|For the geological epoch, see
HoloceneThe Holocene is a geological epoch which began at the end of the Pleistocene and continues to the present. The Holocene is part of the Quaternary period. Its name comes from the Greek words and , meaning "entirely recent"...
}}
The
Human Era, also known as the
Holocene calendar or
Holocene era (HE), is a year numbering system that adds exactly 10,000 years to the currently world-dominant
Anno Domini and Before Christ are designations used to label or number years used with the Julian and Gregorian calendars....
(AD) and
Common EraCommon Era ,abbreviated as CE, is an alternative designation for the calendar era originally introduced by Dionysius Exiguus in the 6th century, traditionally identified with Anno Domini .Dates before the year 1 CE are indicated by the usage of BCE, short for Before the Common Era Common Era...
(CE) system, placing its first year near the beginning of the
HoloceneThe Holocene is a geological epoch which began at the end of the Pleistocene and continues to the present. The Holocene is part of the Quaternary period. Its name comes from the Greek words and , meaning "entirely recent"...
epoch and the
Neolithic revolutionThe Neolithic Revolution was the first agricultural revolution. It was the transition from hunting and gathering to agriculture and settlement. Archaeological data indicates that various forms of plants and animal domestication evolved independently in 6 separate locations worldwide circa...
. Human Era proponents claim that it makes for easier geological, archaeological, dendrochronological and historical dating, as well as that it bases its epoch on a more universally relevant event. The current year of {{currentyear}} AD can be transformed into a Holocene year by adding the digit "1" before it, making it 1{{currentyear}} HE. The
Human Era was first proposed by scientist,
Cesare EmilianiCesare Emiliani was an Italian-American scientist, considered one of the greatest geologists and micropaleontologists of the 20th century and the founder of paleoceanography, developing the timescale of marine isotope stages, which despite modifications remains in very wide use today.He...
in 1993 {{nowrap|(11993 HE)}}.
Motivation
Cesare Emiliani's proposal for a
calendar reformA calendar reform is any significant revision of a calendar system. The term sometimes is used instead for a proposal to switch to a different calendar.Most calendars have several rules which could be altered by reform:...
sought to solve a number of claimed problems with the current
Anno Domini era, which number the years of the commonly accepted world calendar. These issues include:
- The Anno Domini era (or Common Era) is based on an erroneous estimation of the birth year of Jesus Christ
Jesus of Nazareth , commonly referred to as Jesus Christ or simply as Jesus or Christ, is the central figure of Christianity...
. The era places Jesus' birth year in 1 BC, but modern scholars have determined that he was born in either 6 AD or before 3 BC.
- The approximate birth year of Jesus is seen by some as a less universally-relevant epoch event
In the fields of chronology and periodization, an epoch is an instance in time chosen as the origin of a particular era. The "epoch" then serves as a reference point from which time is measured...
than the approximate beginning of the Holocene epoch.
- BC years are counted down when moving from past to future, thus 44 BC is after 250 BC
- The Gregorian calendar has no year zero
"Year zero" does not exist in the widely used Gregorian calendar or in its predecessor, the Julian calendar. Under those systems, the year 1 BC is followed by AD 1...
, with 1 BC followed immediately by AD 1, complicating the determination of the interval between years on opposite sides of the BC/AD era marker. Many historical lives and regimes span that marker.
Instead, HE places its
epochIn the fields of chronology and periodization, an epoch is an instance in time chosen as the origin of a particular era. The "epoch" then serves as a reference point from which time is measured...
or year one of the current
eraAn era is a commonly used word for long period of time. When used in science, for example geology, eras denote clearly defined periods 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...
to 10,000 BC. This is a rough approximation of the start of the current
geologic epochAn epoch is a subdivision of the geologic timescale based on rock layering. In order, the higher subdivisions are periods, eras and eons. We are currently living in the Holocene epoch...
, the
HoloceneThe Holocene is a geological epoch which began at the end of the Pleistocene and continues to the present. The Holocene is part of the Quaternary period. Its name comes from the Greek words and , meaning "entirely recent"...
(the name means
entirely recent). The motivation for this is that human civilization (e.g., the first settlements,
agricultureAgriculture is the cultivation of animals, plants, fungi and other life forms for food, fiber, and other products used to sustain life. Agriculture was the key implement in the rise of sedentary human civilization, whereby farming of domesticated species created food surpluses that nurtured the...
, etc.) is believed to have arisen entirely within this time. All key dates in human history can then be listed using a simple increasing date scale with smaller dates always occurring before larger dates.
Conversion
Conversion to the Human Era from Julian or Gregorian AD years can be achieved by adding 10,000. BC years are converted by subtracting the BC year from 10,001.
A useful validity check is that the last single digits of BC and HE equivalent pairs must add up to 1 or 11.
{| {{fintabell}}
|-
|
Gregorian years
|
Human Era Holocene Epoch
|-
| c. 30000 BC
| c. 20000 BHE
|-
| 10001 BC
| 0 HE
|-
| 10000 BC
| 1 HE
|-
| 2 BC
| 9999 HE
|-
| 1 BC
| 10000 HE
|-
|
AD and Before Christ are designations used to label or number years used with the Julian and Gregorian calendars....
1
| 10001 HE
|-
| AD 2
| 10002 HE
|-
| AD {{ #expr:
{{redirect3|Holocene era|For the geological epoch, see
HoloceneThe Holocene is a geological epoch which began at the end of the Pleistocene and continues to the present. The Holocene is part of the Quaternary period. Its name comes from the Greek words and , meaning "entirely recent"...
}}
The
Human Era, also known as the
Holocene calendar or
Holocene era (HE), is a year numbering system that adds exactly 10,000 years to the currently world-dominant
Anno Domini and Before Christ are designations used to label or number years used with the Julian and Gregorian calendars....
(AD) and
Common EraCommon Era ,abbreviated as CE, is an alternative designation for the calendar era originally introduced by Dionysius Exiguus in the 6th century, traditionally identified with Anno Domini .Dates before the year 1 CE are indicated by the usage of BCE, short for Before the Common Era Common Era...
(CE) system, placing its first year near the beginning of the
HoloceneThe Holocene is a geological epoch which began at the end of the Pleistocene and continues to the present. The Holocene is part of the Quaternary period. Its name comes from the Greek words and , meaning "entirely recent"...
epoch and the
Neolithic revolutionThe Neolithic Revolution was the first agricultural revolution. It was the transition from hunting and gathering to agriculture and settlement. Archaeological data indicates that various forms of plants and animal domestication evolved independently in 6 separate locations worldwide circa...
. Human Era proponents claim that it makes for easier geological, archaeological, dendrochronological and historical dating, as well as that it bases its epoch on a more universally relevant event. The current year of {{currentyear}} AD can be transformed into a Holocene year by adding the digit "1" before it, making it 1{{currentyear}} HE. The
Human Era was first proposed by scientist,
Cesare EmilianiCesare Emiliani was an Italian-American scientist, considered one of the greatest geologists and micropaleontologists of the 20th century and the founder of paleoceanography, developing the timescale of marine isotope stages, which despite modifications remains in very wide use today.He...
in 1993 {{nowrap|(11993 HE)}}.
Motivation
Cesare Emiliani's proposal for a
calendar reformA calendar reform is any significant revision of a calendar system. The term sometimes is used instead for a proposal to switch to a different calendar.Most calendars have several rules which could be altered by reform:...
sought to solve a number of claimed problems with the current
Anno Domini era, which number the years of the commonly accepted world calendar. These issues include:
- The Anno Domini era (or Common Era) is based on an erroneous estimation of the birth year of Jesus Christ
Jesus of Nazareth , commonly referred to as Jesus Christ or simply as Jesus or Christ, is the central figure of Christianity...
. The era places Jesus' birth year in 1 BC, but modern scholars have determined that he was born in either 6 AD or before 3 BC.
- The approximate birth year of Jesus is seen by some as a less universally-relevant epoch event
In the fields of chronology and periodization, an epoch is an instance in time chosen as the origin of a particular era. The "epoch" then serves as a reference point from which time is measured...
than the approximate beginning of the Holocene epoch.
- BC years are counted down when moving from past to future, thus 44 BC is after 250 BC
- The Gregorian calendar has no year zero
"Year zero" does not exist in the widely used Gregorian calendar or in its predecessor, the Julian calendar. Under those systems, the year 1 BC is followed by AD 1...
, with 1 BC followed immediately by AD 1, complicating the determination of the interval between years on opposite sides of the BC/AD era marker. Many historical lives and regimes span that marker.
Instead, HE places its
epochIn the fields of chronology and periodization, an epoch is an instance in time chosen as the origin of a particular era. The "epoch" then serves as a reference point from which time is measured...
or year one of the current
eraAn era is a commonly used word for long period of time. When used in science, for example geology, eras denote clearly defined periods 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...
to 10,000 BC. This is a rough approximation of the start of the current
geologic epochAn epoch is a subdivision of the geologic timescale based on rock layering. In order, the higher subdivisions are periods, eras and eons. We are currently living in the Holocene epoch...
, the
HoloceneThe Holocene is a geological epoch which began at the end of the Pleistocene and continues to the present. The Holocene is part of the Quaternary period. Its name comes from the Greek words and , meaning "entirely recent"...
(the name means
entirely recent). The motivation for this is that human civilization (e.g., the first settlements,
agricultureAgriculture is the cultivation of animals, plants, fungi and other life forms for food, fiber, and other products used to sustain life. Agriculture was the key implement in the rise of sedentary human civilization, whereby farming of domesticated species created food surpluses that nurtured the...
, etc.) is believed to have arisen entirely within this time. All key dates in human history can then be listed using a simple increasing date scale with smaller dates always occurring before larger dates.
Conversion
Conversion to the Human Era from Julian or Gregorian AD years can be achieved by adding 10,000. BC years are converted by subtracting the BC year from 10,001.
A useful validity check is that the last single digits of BC and HE equivalent pairs must add up to 1 or 11.
{| {{fintabell}}
|-
|
Gregorian years
|
Human Era Holocene Epoch
|-
| c. 30000 BC
| c. 20000 BHE
|-
| 10001 BC
| 0 HE
|-
| 10000 BC
| 1 HE
|-
| 2 BC
| 9999 HE
|-
| 1 BC
| 10000 HE
|-
|
AD and Before Christ are designations used to label or number years used with the Julian and Gregorian calendars....
1
| 10001 HE
|-
| AD 2
| 10002 HE
|-
| AD {{ #expr: {{{year|
{{CURRENTYEAR}}{{PAGENAME}}}}} }}
| {{ #expr: {{{year|
{{CURRENTYEAR}}{{PAGENAME}}}}}+10000 }} HE
|-
| AD 10000
| 20000 HE
|}
See also
- Before Present
Before Present years is a time scale used in archaeology, geology, and other scientific disciplines to specify when events in the past occurred. Because the "present" time changes, standard practice is to use AD 1950 as the origin of the age scale, reflecting the fact that radiocarbon...
- Calendar Era
A calendar era is the year numbering system used by a calendar. For example, the Gregorian calendar numbers its years in the Western Christian era . The instant, date, or year from which time is marked is called the epoch of the era...
- Common Era
Common Era ,abbreviated as CE, is an alternative designation for the calendar era originally introduced by Dionysius Exiguus in the 6th century, traditionally identified with Anno Domini .Dates before the year 1 CE are indicated by the usage of BCE, short for Before the Common Era Common Era...
- Julian date (JD) – the interval of time in days and fractions of a day since January 1, 4713 BC Greenwich noon, Julian proleptic calendar.