jan 1, 1000000000 BC - ??? Creation on Aberrant and Aboleth on Abeir-Toril ???

Description:

The first lifeforms on Abeir-Toril were aberrant, however. Beings from the Far Realm who tried to gain a foothold in Realmspace, among them the Eldest, the oldest-known aboleth and possibly the progenitor of the entire species. The gods also opposed against them, and the Cerulean Sign was a rune of power created during this time by the gods to oppose those beings.

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