4th Earth
The war took many. Our numbers are coming back. Weʼre not sure how many higher-order sentient beings might exist beyond The Cradle.
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The ages of Earth are not typically known or named except in hindsight.
First Earth was the rise, time, and fall of humans, also known as homo-sapiens (by them) and First Earthers (by us). They gave the planet its name, which we still use to this day.
Second Earth was the rise of the Fenghuang and decline of humans. The Fenghuang are believed to have created The Cradle alongside the humans who remained.
Third Earth was the rise and destruction of Maul, and saw many higher-order species migrate to The Cradle in waves. Eventually leading Maul to The Cradle and The Battle over Third Earth.
Fourth Earth is the time following the destruction of Maul.