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Prehistory of the world

Prehistory of the world refers to the vast period of time before the advent of written records, encompassing the development of the Earth and the evolution of life. This era includes significant milestones such as the formation of the planet, the emergence of early life forms, the evolution of humans, and the development of early human societies. The study of prehistory relies on archaeological findings, fossil records, and other scientific methods to reconstruct the events and timelines that shaped our world.

Creation Time:2024-06-30 15 key nodes English

The Timeline

4.6 billion years ago — 5,000 years ago

  1. 4.6 billion years ago

    Formation of the Earth

    The Earth formed approximately 4.6 billion years ago from the solar nebula, marking the beginning of the Prehistory of the world.
  2. 3.5 billion years ago

    Emergence of Prokaryotic Life

    The first simple, single-celled organisms, known as prokaryotes, appeared around 3.5 billion years ago.
  3. 2.7 billion years ago

    Oxygenation of the Atmosphere

    Photosynthetic bacteria began producing oxygen, leading to the Great Oxidation Event, which significantly altered the Earth's atmosphere.
  4. 1.5 billion years ago

    Appearance of Eukaryotic Cells

    Eukaryotic cells, which have a nucleus and other organelles, emerged around 1.5 billion years ago, marking a major step in the evolution of complex life.
  5. 600 million years ago

    Cambrian Explosion

    The Cambrian Explosion, occurring around 600 million years ago, saw a rapid diversification of life forms, leading to the emergence of most major animal phyla.
  6. 400 million years ago

    Colonization of Land by Plants and Animals

    Plants and animals began to colonize land around 400 million years ago, significantly altering terrestrial ecosystems.
  7. 250 million years ago

    Permian-Triassic Extinction Event

    The Permian-Triassic Extinction Event, occurring around 250 million years ago, was the largest mass extinction in Earth's history, wiping out nearly 96% of marine species and 70% of terrestrial vertebrate species.
  8. 65 million years ago

    Cretaceous-Paleogene Extinction Event

    The Cretaceous-Paleogene Extinction Event, around 65 million years ago, led to the extinction of the dinosaurs, paving the way for mammals to become the dominant land animals.
  9. 7 million years ago

    Emergence of Hominins

    The earliest hominins, ancestors of modern humans, appeared around 7 million years ago in Africa.
  10. 2.5 million years ago

    Stone Tools and the Paleolithic Era

    The use of stone tools marks the beginning of the Paleolithic Era, which lasted until around 10,000 years ago.
  11. 1.8 million years ago

    Homo Erectus

    Homo erectus, an early human species, emerged around 1.8 million years ago and is known for its use of more advanced tools and control of fire.
  12. 200,000 years ago

    Appearance of Homo Sapiens

    Modern humans, Homo sapiens, first appeared around 200,000 years ago in Africa.
  13. 40,000 years ago

    Cultural Explosion

    The Upper Paleolithic period saw a cultural explosion with the creation of art, music, and more complex tools.
  14. 12,000 years ago

    Neolithic Revolution

    The Neolithic Revolution began around 12,000 years ago, with humans transitioning from nomadic hunter-gatherers to settled agricultural societies.
  15. 5,000 years ago

    Invention of Writing

    The invention of writing around 5,000 years ago in Mesopotamia marks the end of prehistory and the beginning of recorded history.

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