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    Wikipedia
    https://en.wikipedia.org › wiki › History_of_Earth

    History of Earth - Wikipedia

    • Recognizable humans emerged at most 2 million years ago, a vanishingly small period on the geological scale. The earliest undisputed evidence of life on Earth dates at least from 3.5 billion years ago, [7] [8] [9] during the Eoarchean Era, after a geological crust 展开

    Overview

    The natural history of Earth concerns the development of planet Earth from its formation to the present day. Nearly all branches of natural science have contributed to understanding of the main events of Earth'… 展开

    Eons

    In geochronology, time is generally measured in mya (million years ago), each unit representing the period of approximately 1,000,000 years in the past. The history of Earth is divided into four great … 展开

    Here's What did Ancient Earth Look Like - Our Planet
    Our Planet
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