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jan 1, 600000000 BC - Formation of the ozone layer

Description:

Accumulation of atmospheric oxygen allows for the formation of ozone layer. Prior to this, land-based life would probably have required other chemicals to attenuate ultraviolet radiation enough to permit colonization of the land.

Added to timeline:

History of the entire Universe

ByInfinity_Zoom
1 months ago
4
2
56

Date:

jan 1, 600000000 BC
Now
~ 5883516 years ago

Images:

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