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Since Earth's creation, oceans, continents and life have emerged. From evolution to extinction, here are the geological events and history of Earth timeline
The history of Earth is divided into four great eons, starting 4,540 mya with the formation of the planet. Each eon saw the most significant changes in Earth's composition, climate and life. Each eon is subsequently divided into eras, which in turn are divided into periods, which are further divided into epochs. Geologic time scale.
Over 4.5 billion years ago, our solar system formed from a giant molecular cloud that collapsed under its own tremendous gravity. The hot stew of hydrogen and helium gave birth to our sun and flung out a wide disc of gas and particles in the surrounding space.
Geologic time, the extensive interval of time occupied by the geologic history of Earth. Formal geologic time begins with the Archean Eon (4.0 billion to 2.5 billion years ago) and continues to the present day. Modern geologic time scales also include the Hadean Eon (4.6 billion to 4.0 billion years ago).
This timeline of natural history summarizes significant geological and biological events from the formation of the Earth to the arrival of modern humans. Times are listed in millions of years, or megaanni ( Ma ).
Key points in Earth’s formation include the initial birth of our planet within the solar nebula, the differentiation into layers, and the dynamic interplay of geological processes that have shaped the Earth we know today.
About 4.6 billion years ago, the Earth was a molten ball of lava where heavier elements, like iron, sunk to the middle of the Earth to create the dense inner core. Slowly, the surface of...
Author Andy Bergmann created the Timeline of Earth to get a better sense of how key events relate in time over our planet's 4.6 billion year history.
by @dubly. ↑ other way ↑. Timeline of Earth - An interactive timline of the history of Earth by @Dubly.
The dark lord retreated to Mordor, marking a decisive victory for the free peoples of Middle-earth in The War of the Elves and Sauron, and a decisive Second Age defeat for the latter.