History of Dulūn

The void around Dulūn is moved away to make rooms for the rest of the planes; they eventually become known as the Nine Hells and the Abyss.

Sesais creates the elemental planes.

The Material Plane is separated into three parts, isolating the bright and dark parts into the Feywild and the Shadowfell.

Sesais is split into 5 parts who inherit the planet: Ehrendil, Tithys, Conzotl, Khisteus, and Lillon.

The mortal Myldala gains enough power to access planar magic, using it to weave the astral plane into the rest of the planes, connecting them together permanently. She cuts off planar magic from being accessible to anyone else, recognising that the power in the wrong hands could do apocalyptic levels of harm. This event gives mortals more ready access to arcane magic, and solidifies Myldala's place as a Greater Deity, in the time before new deities being created was incredibly rare.

As the planes become more closely connected and able to be traveled, a group of fey known as the Elven Congregation move to the material plane in exile from feywild. Over time, as they stay in the material plane, they become much more humanoid and eventually become the Elves

Sesais is reformed through the effort of the six greater celestials, instituting a number of rules to maintain order among the gods.

The revolution of the devils against the celestials, the event that caused such a distinction to exist. Ravaged Dulūn throughout its duration, severely setting its progress back and sending it into its dark ages. The war reached its conclusion with the killing of Sesais and the banishment of the devils into what became the Nine Hells.   Celesials Devils

The remaining gods that were loyal to Sesais realise the true threat Zaldir and his army bring, and band together to banish him and his followers into what soon became the Nine Hells.   Celesials