Miskatonic’s famous expedition to the Antarctic circle reaches its destination.
Nearby town Innsmouth founded.
Cthulhu and his spawn seep down from the distant star system of Xoth, claiming a huge continent and naming it R’lyeh.
War begins with the Eldar Things.
750 to 450 million years ago;
Flying Pylops arrive
The minds of the Great Race of Yith travel across time and space to inhabit the bodies of cone-shaped beings in Australia. Yithians conquor the Pylops and build guard cities atop them.