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About 4,600 million years ago the earth began to form when a collision between disc-shaped clouds, soon the dust and gas clumped together to for Earth
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First form of eukaryotes was seen 3,800 million years ago creating larger bacteria organisms
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Life first began to be seen about 3,500 million years ago in small microscopic organisms
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Oxygen first was brought to the atmosphere by a bacteria giving off oxygen from photosynthesis
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One of the many major mass extinctions first occurred wiping out most life
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Mass extinction occurred shortly after Ordovician and created new ways to form life
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Earths land mass was once all connected and the formation was about 270 million years ago
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Extinction mainly affected first forms of life in first reptiles
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Extinctions of first species of dinosaurs
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The land formation began to swept are and form continents
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One of the most impacting extinctions which killed all forms of dinosaurs
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Humans first evolved and was from evolution of monkeys
