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Around 540 million years ago, there was a rapid increase in the diversity of life forms on Earth, known as the Cambrian Explosion. This period saw the emergence of most major animal phyla.

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The first vertebrate animals appeared around 520 million years ago.

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Around 475 million years ago, the first land plants appeared, marking a significant shift from aquatic to terrestrial ecosystems.

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Reptiles first appeared around 310 million years ago during the Carboniferous period.

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Approximately 252 million years ago, the largest mass extinction event in Earth's history occurred, wiping out around 96% of marine species and 70% of terrestrial vertebrate species.

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Dinosaurs first appeared during the Triassic period, around 230 million years ago.

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The first mammals evolved from reptilian ancestors around 225 million years ago.

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Birds evolved from theropod dinosaurs during the Jurassic period, approximately 150 million years ago.

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Flowering plants (angiosperms) first appeared during the early Cretaceous period, around 130 million years ago.

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Around 66 million years ago, a mass extinction event caused by an asteroid impact led to the extinction of the dinosaurs and many other species, marking the end of the Mesozoic era.

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Primates first appeared around 55 million years ago, shortly after the extinction of the dinosaurs.

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The first hominids, our early human ancestors, appeared in Africa around 6 million years ago.

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The age of the oldest continuous ice core, which gives us valuable climate data, is around 800,000 years.

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Modern humans (Homo sapiens) evolved around 300,000 years ago in Africa. They are known for their complex tool use, art, and culture.