History of the Earth

The Big Bang (13.8 billion years ago)

1 CE

Formation of Earth (4.6 billion years ago)

2

Formation of the Solar System (4.6 billion years ago)

2

Earth's crust and core forms (4.5 billion years ago)

3

First oceans form (4.4 billion years ago)

4

First life - single celled organisms appeared (3.85 billion years ago)

5

Oxygen accumulates in the atmosphere (1.5 billion years ago)

6

First animal (single celled animals) evolved (700 million years ago)

7

Pangea formed (Early Permian Epoch, about 299-273 million years ago)

8

First dinosaurs evolve from lizards (225 million years ago)

9

Breakup of Pangea (Early Jurassic Epoch, about 201 million to 174 million years ago)

10

Dinosaurs go extinct (65 million years ago)

11

Modern humans evolved (130,000 years ago)

12