Hadean

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A topic known well beyond its field, found in many languages.

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What Wikipedia says

The Hadean ( hay-DEE-ən, HAY-dee-ən) is the first and oldest of the four geologic eons of Earth's history, starting with the planet's formation about 4.6 Ga (estimated 4567.30 ± 0.16 Ma set by the age of the oldest solid material in the Solar System—protoplanetary disk dust particles—found as chondrules and calcium–aluminium-rich inclusions in some meteorites about 4.567 Ga), and ending 4.031 Ga, the age of the oldest known intact rock formations on Earth as recognized by the International Commission on Stratigraphy.

Excerpt from the Wikipedia article “Hadean”, under the CC BY-SA 4.0 license. Read the article on Wikipedia

Image: Tim Bertelink, CC BY-SA 4.0, via Wikimedia Commons.