Earth Timeline

Earth's formation

4500 BCE

→ More than 4,500 million years ago the earth was formed.

The first organic molecules

4000 BCE

4000my→ The first organic molecules appears 4.000 millions years ago, the first organic molecules was very simple, carbon-based molecules made of few atoms. These molecules then combined with other simple molecules to form more complex molecules.

Life appears

3500 BCE

Prokaryotic cells was in the earth since 3500my
→ The prokaryotic cells appears 3500 million years ago, are made by :
The plasma membrane
Cytoplasm
DNA
Ribosomes

Oxigen in the earth

1800 BCE

→ 1.800 milions years ago oxygen came to Earth, our atmosphere is composed with oxygen, nitrogen and a little bit of Argon.

First eukaryotic cells

1400 BCE

1.400 million years ago appeared the first eukaryotic cells, contain a nucleus and organelles, and are enclosed by a plasma membrane.

Formations of continents

1100 BCE

1100my

Multicelular organisms

600 BCE

Multicellular organisms are organisms that are more than one cell.
All species of animals, land plants and fungi are multicellular.

First Vertebrates

500 BCE

Approximately 500 millions years ago appeared the first vertebrates.

Dinosaurs and mammals coexist

200 BCE

200my ago

Dinosaurs extincion

65 BCE

65my ago

Austrolopitecus

4 BCE

4my ago