The history of the earth

earth is formed

Mar 20, 1904

The sun is formed from the gravvitional collapse of a region within a large molecular cloud.

The oxygen enters the atmosphere

Mar 31, 1904

Meteorties bombarded earth bringing along water and other elements. earths atmosphere became or is now mostly made up og carbon dioxide, water vapor.

1st forms of life

Apr 3, 1904

First simple cells, oxygen producing bacteria.

Pangea is formed

Apr 7, 1904

Pangea existed during the Permian and Triassic geological time periods, which were times of great change

Pangaea begins to break up

Apr 14, 1904

In contrast to the present earth and its distribution of continental mass, much of Pangaea was in the southern Hemisphere and surrounded by a super ocean, Panthalassa.

1st multicellular life

Apr 16, 1904

Complex single-cell life appeared

1st eukaryotes

Apr 17, 1904

Organisms with complex cells containing nucleus appeared

1st Homo sapiens

Apr 19, 1904

Sexual reduction appeared increasing the rate of evolution

Snowball

Jan 1, 1905

Snaowball earth, the entire earth was covered in ice for many million years.

Melting

Feb 7, 1905

The the earth then stared melting thanks to the held if the sun but that ment 49% of the animals disappered.

Dinosaurs

Mar 12, 1905

First small dinosaurs apprered

Extinct

Apr 4, 1905

Dinosaurs became extinct
Mammals became dominant species. Rapid diversification in ants.

Humans

Oct 31, 1905

Human and Neanderthal lineages stared to diverge genetically.