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Stars began to explode into supernovas and had created some of the elements like iron, neon,oxygen, and silicon

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4.6 BYA The solar system was created and the start of the Precambrian era.
4.5 BYA the Earth was formed

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The start of the Hadean period

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The end of the Hadean period and the start of the Archean period where the first cyanobacteria appeared, and the first invertebrates

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The end of the Archean period and the start of the Proterozoic period and the first multicellular life appeared

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2.3 BYA oxygen began to build up in the atmosphere.
2.4 BYA the start of the Huronian Ice age

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2.1 BYA the end of the Huronian Ice age

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800 MYA the start of the cryongenian ice age also known as the snowball Earth

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635 MYA the end of the Cryogenian ice age
600 MYA is the end of the Proterozoic period and Precambrian Eon, also the start of the Phanerozoic Eon also the ozone began to form.
570 MYA is the start of the cambrian period and also the first appearance of fungi and vertebrates and the end of the precambrian era and the start of the Paleozoic era.

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505 MYA the end of the Cambrian period and the start of the Ordovician period
460 MYA the start of the Andean-Saharan ice age
438 MYA the end of the Ordovician period and the star6 of the Silurian period also the first land plants and the first insects appear.
430 MYA the end of the Andean-Saharan ice age
408 MYA the end of the Silurian period and the start of the Devonian period and in the Devonian period and amphibian animals appeared. Also late in the Devonian period there was an extinction.
360 MYA the end of the Devonian period and the start Carboniferous period where the first reptiles appeared, also the Karroo ice age started.

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285 MYA the end of the Carboniferous period and the start of the Permian period and the Triassic extinction happened.
260 MYA the end of the Karroo ice age
256 MYA the end of the Paleozoic era and the start of the Mesozoic era. The end of the Permian period and the start of the Triassic period where the first mammals and dinosaurs appeared.
208 MYA the end of the Triassic period and the start of the Jurassic period where the birds appeared.

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144 MYA the end of the Jurassic period and the start of the Cretaceous period with the K-T extinction event and flowering plants appear.
65 MYA the end of the Mesozoic era and the start of the Cenozoic era

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23 MYA the end of the Oligocene period and the start of the Miocene period
5.3 MYA the end of the Miocene period and the start of the pilocene period where the first human-like creatures appeared
1.6 MYA the end of the Pliocene period and the start of the Pleistocene period where the Quaternary ice age begins
0.01 MYA the end of the Pleistocene period and the start of the Holocene period also the end of the Quaternary ice age