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The origin of the Earth
4.6 billion years ago -
Period: to
Geologic Time
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First life arises
3.8 billion years ago -
Eukaryotes evolved
2.1 billion years ago -
First sexually reproducing organisms
1.1 billion years ago -
First arthropods evolve
570 million years ago -
The first fish
530 million years ago -
Dinosaurs and ammonites become extinct
65 million years ago -
The first amphibians
370 million years ago -
First land plants
475 million years ago -
First forests
385 million years ago -
The earliest reptiles
320 million years ago -
The dinosaurs evolve
225 million years ago -
The mammals evolve
200 million years ago -
First birds
150 million years ago -
Plants evolve
130 million years ago -
The first great apes appear
14 million years ago -
Our species, Homo sapiens evolves
200 thousand years ago -
End of the last Ice Age
10 thousand years ago