History of Earth

This article describes how Earth has changed over geologic time, including details about how life on Earth has changed during the eras and periods of the Phanerozoic eon.

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Important Words in this Resource: 
Earth's history, Earth's past, life on Earth, eon, era, period, epoch, Hadean, Archaean, Proterozoic, formation of Earth, Phanerozoic, Cambrian, Ordovician, Silurian, Devonian, Carboniferous, Permian, Triassic, Jurassic, Cretaceous, Paleogene, Neogene, Cenozoic, Mesozoic, Paleozoic, Pangaea, mass extinction, Age of Fishes, Age of Mammals, dinosaur, Age of Reptiles, plant, bacteria
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