Era of the Efreet

Summary
After years of devastation from the wake of the Illithid empire falling apart, the Efreet came from the elemental planes and quickly took over the world, enslaving this world to their whim. They ruled for four thousand years.

22,000 P.C. - 20,000 P.C.
Wanting to impose order on a world in chaos, the Efreet set upon organizing the world. Separating the races (Humans, Elves, Dwarves, etc.) into various regions and assign them work or jobs as their inherent abilities inclined them towards, they tried to force this world into the most efficient version of it they could make.

A lot of history from various races inhabiting certain regions began around this time. Philosphically, many debate whether or not Elves like forested areas and Dwarves like mountains because they were already inclined towards those regions, or if the Efreet forced them to like them. Many believe these races already had those inclinations and were only assigned those regions because those inclinations existed.

20,000 P.C. - 18,000 P.C.
One of the unforeseen consequences of uniting all the races together was that the races would form their own organizations. The makings of the first Elven civilization with traditions and culture began to sprout while under the rule of the Efreet. This went on slowly, but surely underneath their watch.

Towards the end of the era this first Elven civilization began to fight back. Spread across regions, covering a large majority of the world, the Elves began to fight back across the world. It started small, with guerrilla warfare, but eventually spread to a full out rebellion. The Efreet were not prepared for the Elves to take their destiny into their own hands...

Signs of the Era
The Efreet brought many creatures from other planes to serve them and many remain to this day. They include Azers, Invisible Stalkers, Elementals, other Genies, Water Weirds, Slaadi, various Mephits, and Salamanders. Some of these creatures have lived and bread true here for centuries, they are almost natives now.

One of the highly debated facts of history is the Beholders. Many believe that the inherent wish abilities the various Genies have were the cause of their existence, from a wish that went wrong. Others believe they existed long before this period, but were brought here from a completely different Prime Material Plane. Either way, historians can agree that the first signs and documentation that they existed all came from this time period.

Also, after mass transition from one plane to this world, many portals that were setup for this are still around. Connections and ties to the other planes exists in numerous places in the Prime Material Plane, allowing various creatures to come to this world as well as allowing natives to planar travel.