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200
Homosapiens Appear/0.2 Ma
The Homo Sapiens were the first modern humans. They evolved from the predecessors that were the early homids. Records show that they started to move outside of Africa 70,000 or 100,000 years ago. -
200
Pangea Breaks Apart/200 Million years ago
The main reason that Pangea began to break up is a new material that caused it to rift. This new material was formed due to the crust of the Earth and not being able to support the super continent. -
270
Pangea Forms/270 million years ago
Pangea was the name of the "Super Continent". This continent was a huge land mass that would connect two or more continents together. -
Period: 450 to 440
The Five Mass Extinctions/450- 440 Ma
The Five major mass extinctions were: Ordovican, Devonian, Permian, Triassic, Cretaceous -
600
Multicelluar Organisms Appear/600 Million years ago
The life of Multicelluar organisms began a billion years after the 1st forms of life appeared. These organisms then started to evolve to fish or plants -
Oxygen enters the Atmosphere/ 2.7 Million Years ago
The oxygen that is in the Earth's atmosphere came from an organism called Cyanobacteria which is a blue-green algae. The Microbes in this organism use sunshine, water, and carbon to produce the oxygen. -
Eukaryotes begin to form/2.7 Million years ago
Many scientist believe that Eukaryotes and Prokaryotes formed and evolved years apart. It is thought that Eukaryotes formed on Earth when there was little or no oxygen. -
1st forms of life/3.8 Million years ago
With Eukaryotes coming in a little later, the first forms of life began with the single celled prokaryotic cells. Examples of these cells could be bacteria which was able to withstand the toxic atmosphere Earth had at the time. -
Earth begins to form/ 4.600 Million Years ago
Throughout the process the creation of Earth, there were many meteorites landing at it. After, the Earth begin to cool which then led the surface to solidify.
