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Jan 1, 1000
Earth forms
About 4600 million years ago the earth is formed by gas and clouds of dust. -
Jan 1, 1100
1st forms of life
At around 3800 million years ago the first signs of life appeared on earth. Life was mostly single celled organisms such as bacteria. -
Jan 1, 1200
Oxygen enters the atmosphere
Oxygen was first produced as early as 3500 million years ago but started to build up in the atmosphere around 2400 million years ago. -
Jan 1, 1300
First eukaryotes
The first eukaryotic cells appeared between 2100 and 1500 million years ago. -
Jan 1, 1400
First multicellular life
The first multicellular life appears on earth around 600 million years ago. -
Jan 1, 1460
Ordovican-Silurian mass extinction
The mass extinction happened aproximately 434 million years ago. It wiped out 60% wildlife which was mostly sea life. -
Jan 1, 1470
Late Devonian mass extinction
This mass extinction caused reef extinction and the death of 75% of all species. -
Jan 1, 1500
Pangaea formed
Pangaea was a "super continent" that was made up of all the present day continents. It formed around 270 million years ago. -
Jan 1, 1520
Permian mass extinction
This mass extincton happened 251 million years ago. 90-96% of all marine life were killed. It is also reffered to as "The Great Dying". -
Triassic-Jurrasic
This mass extinction happend roughly 205 million years ago. It wiped out 1/2 of marine invertebrates and 80% of land quadrupeds. -
Pangaea breaks up
Pangaea breaks apart as a result of continental drift to later form the current day continents. -
Cretaceous -Tertiary mass extinction
This extinction happened 65 million years ago and killed all the dinosaurs and most tropical marine life. -
First Homo sapiens
Early ancestors of humans apeared around 7 million years ago, but Homo sapiens appeared between two hundred and one hundred thousand years ago.
