The history of the world (or world history) describes the history of humanity (or human history) as determined by the study of archaeological and written records. Ancient recorded history begins with the invention of writing. However, the roots of civilization reach back to the earliest introduction of primitive technology and culture. Prehistory begins in the Paleolithic Era, or "Early Stone Age," which is followed by the Neolithic Era, or New Stone Age, and the Agricultural Revolution (between 8000 and 5000 BCE) in the Fertile Crescent. The latter period marked a change in human history, as humans began the systematic husbandry of plants and animals. Agriculture advanced, and most humans transitioned from a nomadic to a settled lifestyle as farmers in permanent settlements. Nomadism continued in some locations, especially in isolated regions with few domesticable plant species; but the relative security and increased productivity provided by farming allowed human communities to expand into increasingly larger units, fostered by advances in transportation.
Stone researched hundreds of killers and their methods and motives to develop his hierarchy of "evil". The scale ranges from Category 1, those who kill in self-defense, to the Category 22, serial torturer-murderers. Neurologists, psychologists, and other forensic psychiatrists are interviewed on the show in an attempt to examine and profile the minds of notorious killers. Partial re-enactments are shown along with news footage, evidence, and reports from locals. Neurological, environmental, and genetic factors are examined to help determine what drives a person to kill. Background history and pre-meditation are considered when placing an individual on the scale of evil. The show indirectly deals with the concepts of morality and ethics.
Since 200,000 BCE, humanity has spread around globe and enacted huge change upon the planet. This video shows every year of that story, right from the beginning.
------------------------------------------------------------------------
Abriviations can be found in this document: https://docs.google.com/document/d/1_oJx72M75tuai2mo6yD13qqQB1g_auQxdXxG9u__u94/
-----------------------------------------------------------------------
MUSIC
Hans Zimmer - Aurora
Crusader Kings II - The Persian Army
C21 FX - Ancient Evil
GVR Music - Armifer
A.M - At the Gates of Babylon [REMASTERED]
A.M - New Horizons
Hans Zimmer - Dream is Collapsing
Best Comedy scene "History of the World" by Mel Brooks in HD
મેલ બ્રુક્સ... ઘણા બધાએ આ નામ સાંભળ્યું હશે...
કદાચ એ ચાર્લી અને બીજા ગ્રેટ કોમેડીઅનો જેટલો
પ્રસિદ્ધ નહિ હોય... છતાંય એની પોતાની આગવી
સેન્સ ઓફ હ્યુમરથી બહુ સારી કોમેડી ફિલ્મો બનાવી
છે. સાઈલન્ટ મુવી ૧૯૭૬ અને હિસ્ટ્રી ઓફ ધ વર્લ્ડ
૧૯૮૦ બંને ફિલ્મો ખુબ સફળ રહી હતી...
આ કલીપ હિસ્ટ્રી ઓફ ધ વર્લ્ડ ફિલ્મની છે...
રોમના રાજા સીઝરનું જે હ્યુમર થી ચિત્રીકરણ કર્યું
છે તે જબરું છે.. તમામ કલાકારોના ભાવો જોવાની
મજા પડી જશે...
કહેવાય છે કોઈ પણ ફિલ્મ સહુ થી પહેલા એના
ડાયરેક્ટરને વિસ્યુલાઇઝ થાય છે... પહેલા આખી
ફિલ્મ તેના દિમાગમાં ભજવાય છે... હવે કલીપ જોઇને
વિચારજો કે ડાયરેક્ટર કેટલો મશ્કરો હશે...
published: 07 Apr 2014
History of the World: Every Year
The entire history of the World from the rise of civilisation to the present day.
Drex's channel: https://www.youtube.com/channel/UCS1Q3Igx4ow3RsZLzFVvbTg
---------------------------------------------------
Music:
00:09 - The Whale (Life of Pi)
02:06 - Audiomachine - Blood & Stone
05:22 - Globus - Preliator
09:00 - Antti Martikainen - Barbarossa
12:11 - Peter Crowley - The Treasure Quest
14:36 - Zack Hemsey - See what I've become
Outro: Kawai Kenji - Kishi Ou No Hokori
published: 17 Dec 2015
Mel Brookes History of the World - Last Supper
from Mel Brookes, his version of the last supper featuring the waiter
published: 07 Nov 2007
History of the World Part 1 (Mel Brooks) - Old Testament - Moses - Ten Commandments
published: 03 Feb 2012
History of the USA 🇺🇸🦅
This video shows the Evolution and History and Geography and Wars of the United States and the British Empire! The USA has GREAT and INSANE History of America and its Countryballs. This is a History video that shows the Evolution of the USA.
#history #geography #shorts
Inspired by Histriphy's Evolution of Russia and JP-BALL's Evolution of USA
published: 22 Jul 2024
The ENTIRE History of Human Civilizations | Ancient to Modern (4K Documentary) [Full Movie]
The ENTIRE History of Mankind - 4k Documentary
Ancient History (3600 B.C.-500 A.D.)
The Middle Ages (500-1500 A.D.)
Modern Age (1500-present)
--------------------------------------
The history of our story began long ago,
At one point in time, around three billion years ago, we were floating around as little, tiny atoms in the little Petri dish of the world.
Around 6 million years ago, and we see the emergence of the first hominoids - the family of primates that includes humans.
1.9 Million years ago, Homo Erectus was the first species to leave Africa and colonize other parts of the world. They had larger brains than their primate ancestors.
Around 400,000 years ago, the first evidence of the Neanderthals. Their bodies were adapted to the cold environments of Europe and Western As...
published: 08 Aug 2023
อิหร่านยืนยันโจมตีเต็มรูปแบบ! อิสราเอลยื่นคำขาดสุดท้าย - History World
The History of Earth - How Our Planet Formed - Full Documentary HD
In the very beginning of earth's history, this planet was a giant, red hot, roiling, boiling sea of molten rock - a magma ocean. The heat had been generated by the repeated high speed collisions of much smaller bodies of space rocks that continually clumped together as they collided to form this planet. As the collisions tapered off the earth began to cool, forming a thin crust on its surface. As the cooling continued, water vapor began to escape and condense in the earth's early atmosphere. Clouds formed and storms raged, raining more and more water down on the primitive earth, cooling the surface further until it was flooded with water, forming the seas.
It is theorized that the true age of the earth is about 4.6 billion years old, formed at about the same time as the rest of our solar ...
Since 200,000 BCE, humanity has spread around globe and enacted huge change upon the planet. This video shows every year of that story, right from the beginning...
Since 200,000 BCE, humanity has spread around globe and enacted huge change upon the planet. This video shows every year of that story, right from the beginning.
------------------------------------------------------------------------
Abriviations can be found in this document: https://docs.google.com/document/d/1_oJx72M75tuai2mo6yD13qqQB1g_auQxdXxG9u__u94/
-----------------------------------------------------------------------
MUSIC
Hans Zimmer - Aurora
Crusader Kings II - The Persian Army
C21 FX - Ancient Evil
GVR Music - Armifer
A.M - At the Gates of Babylon [REMASTERED]
A.M - New Horizons
Hans Zimmer - Dream is Collapsing
Since 200,000 BCE, humanity has spread around globe and enacted huge change upon the planet. This video shows every year of that story, right from the beginning.
------------------------------------------------------------------------
Abriviations can be found in this document: https://docs.google.com/document/d/1_oJx72M75tuai2mo6yD13qqQB1g_auQxdXxG9u__u94/
-----------------------------------------------------------------------
MUSIC
Hans Zimmer - Aurora
Crusader Kings II - The Persian Army
C21 FX - Ancient Evil
GVR Music - Armifer
A.M - At the Gates of Babylon [REMASTERED]
A.M - New Horizons
Hans Zimmer - Dream is Collapsing
મેલ બ્રુક્સ... ઘણા બધાએ આ નામ સાંભળ્યું હશે...
કદાચ એ ચાર્લી અને બીજા ગ્રેટ કોમેડીઅનો જેટલો
પ્રસિદ્ધ નહિ હોય... છતાંય એની પોતાની આગવી
સેન્સ ઓફ હ્યુમરથી બહુ સા...
મેલ બ્રુક્સ... ઘણા બધાએ આ નામ સાંભળ્યું હશે...
કદાચ એ ચાર્લી અને બીજા ગ્રેટ કોમેડીઅનો જેટલો
પ્રસિદ્ધ નહિ હોય... છતાંય એની પોતાની આગવી
સેન્સ ઓફ હ્યુમરથી બહુ સારી કોમેડી ફિલ્મો બનાવી
છે. સાઈલન્ટ મુવી ૧૯૭૬ અને હિસ્ટ્રી ઓફ ધ વર્લ્ડ
૧૯૮૦ બંને ફિલ્મો ખુબ સફળ રહી હતી...
આ કલીપ હિસ્ટ્રી ઓફ ધ વર્લ્ડ ફિલ્મની છે...
રોમના રાજા સીઝરનું જે હ્યુમર થી ચિત્રીકરણ કર્યું
છે તે જબરું છે.. તમામ કલાકારોના ભાવો જોવાની
મજા પડી જશે...
કહેવાય છે કોઈ પણ ફિલ્મ સહુ થી પહેલા એના
ડાયરેક્ટરને વિસ્યુલાઇઝ થાય છે... પહેલા આખી
ફિલ્મ તેના દિમાગમાં ભજવાય છે... હવે કલીપ જોઇને
વિચારજો કે ડાયરેક્ટર કેટલો મશ્કરો હશે...
મેલ બ્રુક્સ... ઘણા બધાએ આ નામ સાંભળ્યું હશે...
કદાચ એ ચાર્લી અને બીજા ગ્રેટ કોમેડીઅનો જેટલો
પ્રસિદ્ધ નહિ હોય... છતાંય એની પોતાની આગવી
સેન્સ ઓફ હ્યુમરથી બહુ સારી કોમેડી ફિલ્મો બનાવી
છે. સાઈલન્ટ મુવી ૧૯૭૬ અને હિસ્ટ્રી ઓફ ધ વર્લ્ડ
૧૯૮૦ બંને ફિલ્મો ખુબ સફળ રહી હતી...
આ કલીપ હિસ્ટ્રી ઓફ ધ વર્લ્ડ ફિલ્મની છે...
રોમના રાજા સીઝરનું જે હ્યુમર થી ચિત્રીકરણ કર્યું
છે તે જબરું છે.. તમામ કલાકારોના ભાવો જોવાની
મજા પડી જશે...
કહેવાય છે કોઈ પણ ફિલ્મ સહુ થી પહેલા એના
ડાયરેક્ટરને વિસ્યુલાઇઝ થાય છે... પહેલા આખી
ફિલ્મ તેના દિમાગમાં ભજવાય છે... હવે કલીપ જોઇને
વિચારજો કે ડાયરેક્ટર કેટલો મશ્કરો હશે...
The entire history of the World from the rise of civilisation to the present day.
Drex's channel: https://www.youtube.com/channel/UCS1Q3Igx4ow3RsZLzFVvbTg
----...
The entire history of the World from the rise of civilisation to the present day.
Drex's channel: https://www.youtube.com/channel/UCS1Q3Igx4ow3RsZLzFVvbTg
---------------------------------------------------
Music:
00:09 - The Whale (Life of Pi)
02:06 - Audiomachine - Blood & Stone
05:22 - Globus - Preliator
09:00 - Antti Martikainen - Barbarossa
12:11 - Peter Crowley - The Treasure Quest
14:36 - Zack Hemsey - See what I've become
Outro: Kawai Kenji - Kishi Ou No Hokori
The entire history of the World from the rise of civilisation to the present day.
Drex's channel: https://www.youtube.com/channel/UCS1Q3Igx4ow3RsZLzFVvbTg
---------------------------------------------------
Music:
00:09 - The Whale (Life of Pi)
02:06 - Audiomachine - Blood & Stone
05:22 - Globus - Preliator
09:00 - Antti Martikainen - Barbarossa
12:11 - Peter Crowley - The Treasure Quest
14:36 - Zack Hemsey - See what I've become
Outro: Kawai Kenji - Kishi Ou No Hokori
This video shows the Evolution and History and Geography and Wars of the United States and the British Empire! The USA has GREAT and INSANE History of America a...
This video shows the Evolution and History and Geography and Wars of the United States and the British Empire! The USA has GREAT and INSANE History of America and its Countryballs. This is a History video that shows the Evolution of the USA.
#history #geography #shorts
Inspired by Histriphy's Evolution of Russia and JP-BALL's Evolution of USA
This video shows the Evolution and History and Geography and Wars of the United States and the British Empire! The USA has GREAT and INSANE History of America and its Countryballs. This is a History video that shows the Evolution of the USA.
#history #geography #shorts
Inspired by Histriphy's Evolution of Russia and JP-BALL's Evolution of USA
The ENTIRE History of Mankind - 4k Documentary
Ancient History (3600 B.C.-500 A.D.)
The Middle Ages (500-1500 A.D.)
Modern Age (1500-present)
----------------...
The ENTIRE History of Mankind - 4k Documentary
Ancient History (3600 B.C.-500 A.D.)
The Middle Ages (500-1500 A.D.)
Modern Age (1500-present)
--------------------------------------
The history of our story began long ago,
At one point in time, around three billion years ago, we were floating around as little, tiny atoms in the little Petri dish of the world.
Around 6 million years ago, and we see the emergence of the first hominoids - the family of primates that includes humans.
1.9 Million years ago, Homo Erectus was the first species to leave Africa and colonize other parts of the world. They had larger brains than their primate ancestors.
Around 400,000 years ago, the first evidence of the Neanderthals. Their bodies were adapted to the cold environments of Europe and Western Asia. Their distinctive facial features were some of the most human-like ever seen. They are famous for their massive body weight and big facial hair. These prehistoric ancestors were made for the cold.
Then came us; 300,000 years ago, the first Homo Sapiens roamed the earth. The Only surviving species of the Homo Genus. But how did Homo Sapiens rise into a global dominance through the mechanism of civilization?
--------------------------------------
For all enquiries - [email protected]
The ENTIRE History of Mankind - 4k Documentary
Ancient History (3600 B.C.-500 A.D.)
The Middle Ages (500-1500 A.D.)
Modern Age (1500-present)
--------------------------------------
The history of our story began long ago,
At one point in time, around three billion years ago, we were floating around as little, tiny atoms in the little Petri dish of the world.
Around 6 million years ago, and we see the emergence of the first hominoids - the family of primates that includes humans.
1.9 Million years ago, Homo Erectus was the first species to leave Africa and colonize other parts of the world. They had larger brains than their primate ancestors.
Around 400,000 years ago, the first evidence of the Neanderthals. Their bodies were adapted to the cold environments of Europe and Western Asia. Their distinctive facial features were some of the most human-like ever seen. They are famous for their massive body weight and big facial hair. These prehistoric ancestors were made for the cold.
Then came us; 300,000 years ago, the first Homo Sapiens roamed the earth. The Only surviving species of the Homo Genus. But how did Homo Sapiens rise into a global dominance through the mechanism of civilization?
--------------------------------------
For all enquiries - [email protected]
In the very beginning of earth's history, this planet was a giant, red hot, roiling, boiling sea of molten rock - a magma ocean. The heat had been generated by ...
In the very beginning of earth's history, this planet was a giant, red hot, roiling, boiling sea of molten rock - a magma ocean. The heat had been generated by the repeated high speed collisions of much smaller bodies of space rocks that continually clumped together as they collided to form this planet. As the collisions tapered off the earth began to cool, forming a thin crust on its surface. As the cooling continued, water vapor began to escape and condense in the earth's early atmosphere. Clouds formed and storms raged, raining more and more water down on the primitive earth, cooling the surface further until it was flooded with water, forming the seas.
It is theorized that the true age of the earth is about 4.6 billion years old, formed at about the same time as the rest of our solar system. The oldest rocks geologists have been able to find are 3.9 billion years old. Using radiometric dating methods to determine the age of rocks means scientists have to rely on when the rock was initially formed (as in - when its internal minerals first cooled). In the infancy of our home planet the entire earth was molten rock - a magma ocean.
Since we can only measure as far back in time as we had solid rock on this planet, we are limited in how we can measure the real age of the earth. Due to the forces of plate tectonics, our planet is also a very dynamic one; new mountains forming, old ones wearing down, volcanoes melting and reshaping new crust. The continual changing and reshaping of the earth's surface that involves the melting down and reconstructing of old rock has pretty much eliminated most of the original rocks that came with earth when it was newly formed. So the age is a theoretical age.
When Did Life on Earth Begin?
Scientists are still trying to unravel one of the greatest mysteries of earth: When did "life" first appear and how did it happen? It is estimated that the first life forms on earth were primitive, one-celled creatures that appeared about 3 billion years ago. That's pretty much all there was for about the next two billion years. Then suddenly those single celled organisms began to evolve into multicellular organisms. Then an unprecedented profusion of life in incredibly complex forms began to fill the oceans. Some crawled from the seas and took residence on land, perhaps to escape predators in the ocean. A cascading chain of new and increasingly differentiated forms of life appeared all over the planet, only to be virtually annihilated by an unexplained mass extinction. It would be the first of several mass extinctions in Earth's history.
Scientists have been looking increasingly to space to explain these mass extinctions that have been happening almost like clockwork since the beginning of "living" time. Perhaps we've been getting periodically belted by more space rocks (ie. asteroids), or the collision of neutron stars happening too close for comfort? Each time a mass extinction occurred, life found a way to come back from the brink. Life has tenaciously clung to this small blue planet for the last three billion years. Scientists are finding new cues as to how life first began on earth in some really interesting places - the deep ocean.
#cosmos
#science
#education
In the very beginning of earth's history, this planet was a giant, red hot, roiling, boiling sea of molten rock - a magma ocean. The heat had been generated by the repeated high speed collisions of much smaller bodies of space rocks that continually clumped together as they collided to form this planet. As the collisions tapered off the earth began to cool, forming a thin crust on its surface. As the cooling continued, water vapor began to escape and condense in the earth's early atmosphere. Clouds formed and storms raged, raining more and more water down on the primitive earth, cooling the surface further until it was flooded with water, forming the seas.
It is theorized that the true age of the earth is about 4.6 billion years old, formed at about the same time as the rest of our solar system. The oldest rocks geologists have been able to find are 3.9 billion years old. Using radiometric dating methods to determine the age of rocks means scientists have to rely on when the rock was initially formed (as in - when its internal minerals first cooled). In the infancy of our home planet the entire earth was molten rock - a magma ocean.
Since we can only measure as far back in time as we had solid rock on this planet, we are limited in how we can measure the real age of the earth. Due to the forces of plate tectonics, our planet is also a very dynamic one; new mountains forming, old ones wearing down, volcanoes melting and reshaping new crust. The continual changing and reshaping of the earth's surface that involves the melting down and reconstructing of old rock has pretty much eliminated most of the original rocks that came with earth when it was newly formed. So the age is a theoretical age.
When Did Life on Earth Begin?
Scientists are still trying to unravel one of the greatest mysteries of earth: When did "life" first appear and how did it happen? It is estimated that the first life forms on earth were primitive, one-celled creatures that appeared about 3 billion years ago. That's pretty much all there was for about the next two billion years. Then suddenly those single celled organisms began to evolve into multicellular organisms. Then an unprecedented profusion of life in incredibly complex forms began to fill the oceans. Some crawled from the seas and took residence on land, perhaps to escape predators in the ocean. A cascading chain of new and increasingly differentiated forms of life appeared all over the planet, only to be virtually annihilated by an unexplained mass extinction. It would be the first of several mass extinctions in Earth's history.
Scientists have been looking increasingly to space to explain these mass extinctions that have been happening almost like clockwork since the beginning of "living" time. Perhaps we've been getting periodically belted by more space rocks (ie. asteroids), or the collision of neutron stars happening too close for comfort? Each time a mass extinction occurred, life found a way to come back from the brink. Life has tenaciously clung to this small blue planet for the last three billion years. Scientists are finding new cues as to how life first began on earth in some really interesting places - the deep ocean.
#cosmos
#science
#education
Since 200,000 BCE, humanity has spread around globe and enacted huge change upon the planet. This video shows every year of that story, right from the beginning.
------------------------------------------------------------------------
Abriviations can be found in this document: https://docs.google.com/document/d/1_oJx72M75tuai2mo6yD13qqQB1g_auQxdXxG9u__u94/
-----------------------------------------------------------------------
MUSIC
Hans Zimmer - Aurora
Crusader Kings II - The Persian Army
C21 FX - Ancient Evil
GVR Music - Armifer
A.M - At the Gates of Babylon [REMASTERED]
A.M - New Horizons
Hans Zimmer - Dream is Collapsing
મેલ બ્રુક્સ... ઘણા બધાએ આ નામ સાંભળ્યું હશે...
કદાચ એ ચાર્લી અને બીજા ગ્રેટ કોમેડીઅનો જેટલો
પ્રસિદ્ધ નહિ હોય... છતાંય એની પોતાની આગવી
સેન્સ ઓફ હ્યુમરથી બહુ સારી કોમેડી ફિલ્મો બનાવી
છે. સાઈલન્ટ મુવી ૧૯૭૬ અને હિસ્ટ્રી ઓફ ધ વર્લ્ડ
૧૯૮૦ બંને ફિલ્મો ખુબ સફળ રહી હતી...
આ કલીપ હિસ્ટ્રી ઓફ ધ વર્લ્ડ ફિલ્મની છે...
રોમના રાજા સીઝરનું જે હ્યુમર થી ચિત્રીકરણ કર્યું
છે તે જબરું છે.. તમામ કલાકારોના ભાવો જોવાની
મજા પડી જશે...
કહેવાય છે કોઈ પણ ફિલ્મ સહુ થી પહેલા એના
ડાયરેક્ટરને વિસ્યુલાઇઝ થાય છે... પહેલા આખી
ફિલ્મ તેના દિમાગમાં ભજવાય છે... હવે કલીપ જોઇને
વિચારજો કે ડાયરેક્ટર કેટલો મશ્કરો હશે...
The entire history of the World from the rise of civilisation to the present day.
Drex's channel: https://www.youtube.com/channel/UCS1Q3Igx4ow3RsZLzFVvbTg
---------------------------------------------------
Music:
00:09 - The Whale (Life of Pi)
02:06 - Audiomachine - Blood & Stone
05:22 - Globus - Preliator
09:00 - Antti Martikainen - Barbarossa
12:11 - Peter Crowley - The Treasure Quest
14:36 - Zack Hemsey - See what I've become
Outro: Kawai Kenji - Kishi Ou No Hokori
This video shows the Evolution and History and Geography and Wars of the United States and the British Empire! The USA has GREAT and INSANE History of America and its Countryballs. This is a History video that shows the Evolution of the USA.
#history #geography #shorts
Inspired by Histriphy's Evolution of Russia and JP-BALL's Evolution of USA
The ENTIRE History of Mankind - 4k Documentary
Ancient History (3600 B.C.-500 A.D.)
The Middle Ages (500-1500 A.D.)
Modern Age (1500-present)
--------------------------------------
The history of our story began long ago,
At one point in time, around three billion years ago, we were floating around as little, tiny atoms in the little Petri dish of the world.
Around 6 million years ago, and we see the emergence of the first hominoids - the family of primates that includes humans.
1.9 Million years ago, Homo Erectus was the first species to leave Africa and colonize other parts of the world. They had larger brains than their primate ancestors.
Around 400,000 years ago, the first evidence of the Neanderthals. Their bodies were adapted to the cold environments of Europe and Western Asia. Their distinctive facial features were some of the most human-like ever seen. They are famous for their massive body weight and big facial hair. These prehistoric ancestors were made for the cold.
Then came us; 300,000 years ago, the first Homo Sapiens roamed the earth. The Only surviving species of the Homo Genus. But how did Homo Sapiens rise into a global dominance through the mechanism of civilization?
--------------------------------------
For all enquiries - [email protected]
In the very beginning of earth's history, this planet was a giant, red hot, roiling, boiling sea of molten rock - a magma ocean. The heat had been generated by the repeated high speed collisions of much smaller bodies of space rocks that continually clumped together as they collided to form this planet. As the collisions tapered off the earth began to cool, forming a thin crust on its surface. As the cooling continued, water vapor began to escape and condense in the earth's early atmosphere. Clouds formed and storms raged, raining more and more water down on the primitive earth, cooling the surface further until it was flooded with water, forming the seas.
It is theorized that the true age of the earth is about 4.6 billion years old, formed at about the same time as the rest of our solar system. The oldest rocks geologists have been able to find are 3.9 billion years old. Using radiometric dating methods to determine the age of rocks means scientists have to rely on when the rock was initially formed (as in - when its internal minerals first cooled). In the infancy of our home planet the entire earth was molten rock - a magma ocean.
Since we can only measure as far back in time as we had solid rock on this planet, we are limited in how we can measure the real age of the earth. Due to the forces of plate tectonics, our planet is also a very dynamic one; new mountains forming, old ones wearing down, volcanoes melting and reshaping new crust. The continual changing and reshaping of the earth's surface that involves the melting down and reconstructing of old rock has pretty much eliminated most of the original rocks that came with earth when it was newly formed. So the age is a theoretical age.
When Did Life on Earth Begin?
Scientists are still trying to unravel one of the greatest mysteries of earth: When did "life" first appear and how did it happen? It is estimated that the first life forms on earth were primitive, one-celled creatures that appeared about 3 billion years ago. That's pretty much all there was for about the next two billion years. Then suddenly those single celled organisms began to evolve into multicellular organisms. Then an unprecedented profusion of life in incredibly complex forms began to fill the oceans. Some crawled from the seas and took residence on land, perhaps to escape predators in the ocean. A cascading chain of new and increasingly differentiated forms of life appeared all over the planet, only to be virtually annihilated by an unexplained mass extinction. It would be the first of several mass extinctions in Earth's history.
Scientists have been looking increasingly to space to explain these mass extinctions that have been happening almost like clockwork since the beginning of "living" time. Perhaps we've been getting periodically belted by more space rocks (ie. asteroids), or the collision of neutron stars happening too close for comfort? Each time a mass extinction occurred, life found a way to come back from the brink. Life has tenaciously clung to this small blue planet for the last three billion years. Scientists are finding new cues as to how life first began on earth in some really interesting places - the deep ocean.
#cosmos
#science
#education
The history of the world (or world history) describes the history of humanity (or human history) as determined by the study of archaeological and written records. Ancient recorded history begins with the invention of writing. However, the roots of civilization reach back to the earliest introduction of primitive technology and culture. Prehistory begins in the Paleolithic Era, or "Early Stone Age," which is followed by the Neolithic Era, or New Stone Age, and the Agricultural Revolution (between 8000 and 5000 BCE) in the Fertile Crescent. The latter period marked a change in human history, as humans began the systematic husbandry of plants and animals. Agriculture advanced, and most humans transitioned from a nomadic to a settled lifestyle as farmers in permanent settlements. Nomadism continued in some locations, especially in isolated regions with few domesticable plant species; but the relative security and increased productivity provided by farming allowed human communities to expand into increasingly larger units, fostered by advances in transportation.