# data[].attributes.body
4.5 BYA: Our solar system formed about from a dense cloud of interstellar gas and dust.

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about 4.6 billion years ago to 541 million years ago.

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4.6 BYA: Earth formed out of a mixture of dust and gas around the young sun. It grew larger thanks to countless collisions between dust particles, asteroids, and other growing planets, including one last giant impact that threw enough rock, gas, and dust into space to form the moon.

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2.7 BYA: Cyanobacteria played an important role in the evolution of Early Earth and the biosphere. They are responsible for the oxygenation of the atmosphere and oceans since the Great Oxidation Event

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the appearance of oxygen in the atmosphere

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the appearance of oxygen in the atmosphere

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2.33 BYA: The results suggest that the initial buildup of oxygen in the atmosphere was relatively rapid. Since its first appearance. Oxygen accumulated in high enough concentrations to have a weathering effect on rocks just 10 million years later.

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1 BYA: Fungi have ancient origins, with evidence indicating they likely first appeared about one billion years ago, though the fossil record of fungi is a little hazy.

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710 MYA: Scientists contend that at least two Snowball Earth glaciations occurred during the Cryogenian period.

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600 MYA: The shorter portion of the UV-C band and the more energetic UV above this band causes the formation of the ozone layer, when single oxygen atoms produced by UV photolysis of dioxygen (below 240 nm) react with more dioxygen.

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the appearance of the first multicellular organism

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the appearance of the first multicellular organism

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600 MYA: The earliest fossils of multicellular organisms include the contested Grypania Spiralis.

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570 MYA: These were soft-bodied organisms that lived in the oceans, such as sponges. Cambrians, for example, were soft-bodied animals with a carapace or shell. There are a lot of key traits in the evolution of invertebrates.

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541 to 485 million years ago.

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500 MYA: Vertebrates first appear in the fossil record about 500 million years ago. These first vertebrates looked like small fishes but didn't have the elaborate fins of modern fishes.

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500 MYA: New data and analysis show that plant life began colonising land 500 million years ago, during the Cambrian Period, around the same time as the emergence of the first land animals. These studies are also improving our understanding of how the plant family first evolved.

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480 MYA: A new timeline for insects shows that the creatures first evolved 479 million years ago — earlier than previously suspected — and that their appearance coincided with Earth's first land plants.

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485 to 443 million years ago.

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368 MYA: The earliest amphibian discovered to date is Elginerpeton, found in Late Devonian rocks of Scotland.

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440 - 410 MYA: Whatever their origins, animals may have ventured onto land early in the Cambrian. Previously scientists believed that animals did not begin to colonise the land until the Silurian

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320 MYA: The origin of the reptiles lies about 320–310 million years ago, in the swamps of the late Carboniferous period, when the first reptiles evolved.

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250 - 200 MYA: The earliest known dinosaurs appeared during the Triassic Period. Dinosaurs evolved into a very diverse group of animals with a vast array of physical features, including modern birds.

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165–150 MYA: Birds evolved from theropod dinosaurs during the Jurassic Period and their classic small, lightweight, feathered, and winged body plan was pieced together gradually over tens of millions of years of evolution rather than in one burst of innovation.

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225 MYA: Early mammals were inauspicious creatures. The first mammal-like forms appear in the fossil record during the late Triassic period,

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125 MYA: Researchers have found an ancient plant in Liaoning, Archaefructus, that has very small, simple flowers and could be one of the first flowering plants.

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1.4 million years ago

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541 to 485 million years ago.

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485 to 443 million years ago.

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443 to 419 million years ago.

# data[].attributes.body
419 - 359

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359 to 299 million years ago.

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299 to 252 million years ago.

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252 to 201 million years ago.

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201 to 145 million years ago.

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145 to 66 million years ago.

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23 to 2.58 million years ago.

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66 to 23 million years ago.

# data[].attributes.body
541 to 252 million years ago

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252 - 66 million

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66 million years ago to the present.

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4.0 to 2.5 billion years ago.

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2.5 billion to 541 million years ago

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541 million years ago to the present.

# data[].attributes.headline
each segment represents 200 million years

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each segment represents 200 million years

# data[].attributes.headline
each segment represents 200 million years 

# data[].attributes.subject
each segment represents 200 million years 