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Earth was thought to have been formed 4.6 Billion years ago (4600 Million years ago) by a collision that also created the sun.
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They think 3.8 Billion years ago was when life started to form on planet Earth
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Scientists believe oxygen entered Earth close to 2.45 Billion years ago
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Close to 2.1 Billion years ago, Eukaryotes organisms entered the Earth. They were believed to be more complex and bigger
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600 Million years ago, the first forms of multicellular life came to Earth
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The Ordovician Silurian extinction was the second biggest extinction of Marine life
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People thought it would affect the insects and plants but it wiped out all of marine life
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Pangaea was a continent that existed during the Paleozoic and early Mesozoic eras.
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This was the boundary between Permian and Triassic geological periods. It is the Earths most known extinction events with up to 96% of all marine species and 70% of terrestrial vertebrate species becoming extinct
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Pangaea begins to break up around 200 Million years ago during the early Jurassic period
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This is one of the most major extinction events of the Phanerozoic eon that affected the lands and the oceans.
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This was a mass extinction that took away 3/4 of the plant and animal species on earth
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Nearly 200,000 years ago, the first Homo Sapiens were on Earth. Most of the first skeletons come from Africa or Southwest Asia
