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Sunday, August 18, 2019

A Brief Timeline of History


Now that we know we survived, have a mind and cognition of contrast, have knowledge of truth and perception we can consider from where we came to be.  

An excellent brief history summary is provided by Y. N. Harari, credited below.

Years Before the Present

13.5 billion Matter and energy appear. Beginning of physics. Atoms and molecules appear. Beginning of chemistry.
4.5 billion Formation of planet Earth.
3.8 billion Emergence of organisms. Beginning of biology.

6 million Last common grandmother of humans and chimpanzees.
2.5 million Evolution of the genus Homo in Africa. First stone tools.
2 million Humans spread from Africa to Eurasia. Evolution of different human species.
500,000 Neanderthals evolve in Europe and the Middle East.
300,000 Daily usage of fire.
200,000 Homo sapiens evolves in East Africa.
70,000 The Cognitive Revolution. Emergence of fictive language. Beginning of history. Sapiens spread out of Africa.
45,000 Sapiens settle Australia. Extinction of Australian megafauna.
30,000 Extinction of Neanderthals.
16,000 Sapiens settle America. Extinction of American megafauna.
13,000 Extinction of Homo floresiensis. Homo sapiens the only surviving human species.

12,000 The Agricultural Revolution. Domestication of plants and animals. Permanent settlements.
5,000 First kingdoms, script and money. Polytheistic religions.
4,250 First empire – the Akkadian Empire of Sargon.
2,500 Invention of coinage – a universal money.
The Persian Empire – a universal political order ‘for the benefit of all humans’.
Buddhism in India – a universal truth ‘to liberate all beings from suffering’.
2,000 Han Empire in China. Roman Empire in the Mediterranean. Christianity.
1,400 Islam.
500 The Scientific Revolution. Humankind admits its ignorance and begins to acquire unprecedented power. Europeans begin to conquer America and the oceans. The entire planet becomes a single historical arena. The rise of capitalism.
200 The Industrial Revolution. Family and community are replaced by state and market. Massive extinction of plants and animals.

The Present Humans transcend the boundaries of planet Earth. Nuclear weapons threaten the survival of humankind. Organisms are increasingly shaped by intelligent design rather than natural selection. The Future Intelligent design becomes the basic principle of life? Homo sapiens is replaced by superhumans?

Source:
Harari, Y. N. Sapiens: A Brief History of Humankind. HarperCollins. Retrieved from Kindle Edition.

Pangaea or Pangea ( /pænˈdʒiːə/[1]) was a supercontinent that existed during the late Paleozoic and early Mesozoic eras.[2][3] It assembled from earlier continental units approximately 335 million years ago, and it began to break apart about 175 million years ago.[4] In contrast to the present Earth and its distribution of continental mass, much of Pangaea was in the southern hemisphere and surrounded by a superocean, Panthalassa. Pangaea was the most recent supercontinent to have existed and the first to be reconstructed by geologists.

Source:

However, Pannotia (from Greek: pan-, "all", -nótos, "south"; meaning "all southern land"), also known as the Vendian supercontinentGreater Gondwana, and the Pan-African supercontinent, was a relatively short-lived Neoproterozoic supercontinent that formed at the end of the Precambrian during the Pan-African orogeny (650–500 Ma), during the Cryogenian period and broke apart 560 Ma with the opening of the Iapetus Ocean, in the late Ediacaran and early Cambrian.[1] Pannotia formed when Laurentia was located adjacent to the two major South American cratonsAmazonia and Río de la Plata. The opening of the Iapetus Ocean separated Laurentia from Baltica, Amazonia, and Río de la Plata.[2] In 2022 the whole concept of Pannotia has been put into question by scientists who argue its existence is not supported by geochronology, "the supposed landmass had begun to break up well before it was fully assembled".[3]

https://en.wikipedia.org/wiki/Pannotia#Formation

Rodinia (from the Russian родинаrodina, meaning "motherland, birthplace"[2][3][4]) was a Mesoproterozoic and Neoproterozoic supercontinent that assembled 1.26–0.90 billion years ago[5] and broke up 750–633 million years ago.[6] 

https://en.wikipedia.org/wiki/Rodinia

What we know of the Earth today is not static. It too has a history. Beware! History can change, which seems impossible! We inpret the past by what we know NOW. The present does not affect what happened in history, but it does affect how we understand history. History is pieced together by evidence (and myth). As the evidence changes (often new uncovered) so can our understanding of what really happened. 

Update: Further reading 

https://www.sciencedirect.com/science/article/pii/S1674987124001464?fbclid=IwY2xjawLShThleHRuA2FlbQIxMABicmlkETFFOTZZWTJNVThiZkFQUWVkAR4bfJCQkRQAuym3-x1U45xsWQEbdNFx_eKjFKUmbr8o-5T1WuO1xKa09XU_Pg_aem_oFUiIShMB0xhoEkrSRYKGQ

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