ARCHAEAN EON (jan 1, 1000000000 BC – dec 30, 1000000000 BC)
Description:
GEOLOGICAL:- 3800 mya: Surface of the Earth changed from molten to solid rock.
BIOLOGIAL:
-First known oxygen-producing bacteria: cyanobacteria (blue-green algae) form stromatolites
Added to timeline:
Date:
jan 1, 1000000000 BC
dec 30, 1000000000 BC
~ 12 months