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jan 1, 1000000000 BC - Oxygen Levels Lowest

Description:

Rough estimate, 2.4 BYA

When oxygen first appeared, almost 0% of atmosphere.

Added to timeline:

History of Life on Earth

ByMatthew Pedowitz

10 Oct 2020

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445

Date:

jan 1, 1000000000 BC

Now

~ 5883516 years ago

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