Earth-1 (Post-Crisis)

"We're talking about a being whose very existence challenges our own sense of priority in the universe. And you go back to Copernicus, where he restored the Sun in the center of the known universe, displacing Earth. And you get to Darwinian evolution, and you find out we're not special on this Earth, we're just one among other lifeforms. And now we learn that we're not even special in the entire universe because there is Superman. There he is. An alien among us. We're not alone."

- Neil deGrasse Tyson

Earth-1 is one of the many universes in the New Multiverse.

Creation
Earth-1 was created as one of the many universes in the New Multiverse by the Spectre and the Paragons during the Crisis. Previously, Barry Allen of this universe had somehow encountered the Original Multiverse's Earth-1's Barry Allen (the latter was a paragon; the former simply faded away) while travelling through the Speed Force.

Enchantress and Incubus
In 4358 B.C., Enchantress and Incubus travelled to Earth-1 from their dimension, appearing before the people of South America. This led to them ruling over and being worshiped by a group of people until they were overthrown and trapped in idols in the Tres Osos Caves.

Invasion of Earth
In around 3000 B.C., Uxas led an Invasion of Earth from the Dark Place after discovering the Anti-Life Equation on the planet. However, his army was defeated by the combined forces of the Humans, Atlanteans, Amazons, Olympians and Green Lantern Corps member Yalan Gur, forcing the Apokoliptian to retreat back to their own dimension.