మూస:Nature timeline

Nature timeline

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0 —

Reionization

Matter-dominated
era

accelerated expansion

Unicellular life

photosynthesis

Multicellular
life

Vertebrates

Dark Ages

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Earliest universe (−13.80)

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Earliest galaxy

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Earliest quasar/sbh

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Omega Centauri forms

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Andromeda Galaxy forms

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Milky Way Galaxy
spiral arms form

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Alpha Centauri forms

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Earliest oxygen

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Atmospheric oxygen

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Earliest sexual reproduction

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Earliest plants

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Cambrian explosion

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Earliest mammals

Axis scale: billion years
Also see: Human timeline and Life timeline

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