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Timeline of earth

The Timeline of Earth chronicles the major events in the history of our planet, from its formation to the present day. It includes significant geological periods, evolutionary milestones, and natural events that have shaped the Earth’s development over billions of years. This timeline provides a structured overview of these pivotal moments, offering insights into the dynamic processes that have influenced the planet’s physical and biological evolution.

Creation Time:2024-06-25 15 key nodes English

The Timeline

4.54 billion years ago — 10,000 years ago

  1. 4.54 billion years ago

    Formation of Earth

    The Earth formed from the solar nebula, a disc-shaped mass of dust and gas left over from the formation of the Sun.
  2. 4.4 billion years ago

    Formation of the Moon

    The Moon is believed to have formed shortly after the Earth, likely as a result of a giant impact between the early Earth and a Mars-sized body.
  3. 3.8 billion years ago

    First Evidence of Life

    The earliest evidence of life on Earth dates back to around 3.8 billion years ago, with the appearance of simple, single-celled organisms known as prokaryotes.
  4. 3.5 billion years ago

    Photosynthesis Begins

    Cyanobacteria, or blue-green algae, began to perform photosynthesis, producing oxygen and significantly altering the Earth's atmosphere.
  5. 2.4 billion years ago

    Great Oxidation Event

    The Great Oxidation Event marks a time when oxygen produced by photosynthetic organisms began to accumulate in the atmosphere, leading to significant changes in Earth's environment.
  6. 1.2 billion years ago

    First Multicellular Life

    The first multicellular organisms appeared, marking a major milestone in the evolution of life on Earth.
  7. 600 million years ago

    Ediacaran Period

    The Ediacaran Period saw the emergence of large, complex multicellular organisms, including the first animals.
  8. 541 million years ago

    Cambrian Explosion

    The Cambrian Explosion was a rapid diversification of life forms, resulting in the appearance of most major animal phyla.
  9. 485 million years ago

    Ordovician Period

    The Ordovician Period saw the diversification of marine life, including the first vertebrates.
  10. 252 million years ago

    Permian-Triassic Extinction Event

    The Permian-Triassic Extinction Event was the most severe extinction event in Earth's history, wiping out approximately 96% of marine species and 70% of terrestrial species.
  11. 201 million years ago

    Triassic-Jurassic Extinction Event

    This extinction event led to the rise of dinosaurs as the dominant terrestrial vertebrates.
  12. 66 million years ago

    Cretaceous-Paleogene Extinction Event

    The Cretaceous-Paleogene Extinction Event, likely caused by an asteroid impact, led to the extinction of the dinosaurs and many other species, paving the way for the rise of mammals.
  13. 2.6 million years ago

    Quaternary Period

    The Quaternary Period is characterized by the development of humans and significant climatic changes, including the Ice Ages.
  14. 200,000 years ago

    Emergence of Homo sapiens

    Homo sapiens, the species to which all modern human beings belong, first appeared in Africa around 200,000 years ago.
  15. 10,000 years ago

    Beginning of Agriculture

    The development of agriculture marked the beginning of the Neolithic Revolution, leading to the establishment of permanent human settlements and the rise of civilizations.

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