|
Date |
Billion Years |
Event |
|
Jan 1st |
13.8 |
Big Bang |
|
March 15st |
11.0 |
The Milky
Way Galaxy is formed |
|
August 31st |
4.57 |
the sun is
formed (Planet and satellite shortly thereafter) |
|
Sept 16st |
4.0 |
The oldest
known rock on earth |
|
Sept 21st |
3.8 |
first life (prokaryotes) |
|
Oct 12st |
3 |
photosynthesis |
|
Oct 29st |
2.4 |
atmospheric oxygenation |
|
Nov 9st |
2 |
complex cells (eukaryotes) |
|
Des 5st |
1 |
The first multicell life |
|
Des 14st |
0.67 |
simple animals |
|
Des 14st |
0.55 |
ancestral insects (arthropods) |
|
Des 18st |
0.5 |
fish and amphibious proto |
|
Des 20st |
0.45 |
Land plants |
|
Des 21st |
0.4 |
insects and seeds |
|
Des 22st |
0.36 |
amphibians |
|
Des 23 st |
0.3 |
Reptile |
|
Des 26st |
0.2 |
mammals |
|
Des 27st |
0.15 |
Bird |
|
Des 28st |
0.13 |
Flower |
|
Des 30 at 06:24 |
0.065 |
The
lime-paleogen extinction event, a non-bird dinosaur extinct |
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