Forgotten Realms Lore pertinent to the ROT2 Campaign Finale... Why is this important.. You will soon find out!
While the most known calendar of the realms is Dale Reckoning, there exists a far older measure of achievement, at least by humans: the Neth. A group of small farming villages that banded together for protection led to an empire of human wizards, cities that floated across the sky and a terrible, terrible arrogance that nearly stripped Toril of its magic forever.
It can be said that the empire of Netheril is the oldest surviving human empire, and as such it's not surprising that it has passed through several different phases. The First Age was the foundering and settling of the Netheril region by humans, and of their contact with elves who taught them magic. This was followed by the Nether Age, so called for the Nether Scrolls that the Netherese people used to rapidly increase their knowledge of magic. Undoubtedly the peak of their power, this was a time when the Netherese were breaking new ground, both in advances of magical pursuits but also exploration into other planes and even across crystal spheres. It is during this age that Karsus lived, a wizard of immense power that sought to grab the power of the gods. Indeed, it is his folly that led to the next age, the Fall of the Empire. Broken and shattered, it took the Netherese people a while to regroup, but eventually came the most recent age, the Re-Emergence of the Empire.
The Fall of the Empire Edit
Netheril was destroyed by Karsus's Folly: an attempt to steal the power of Mystryl, goddess of magic. She sacrificed herself and was replaced by Mystra in a last ditch effort to save Faerûn. When this happened all magic ceased to exist for a time. Since Netherese cities floated above the surface, when magic ceased to exist there was nothing to hold the cities up. Netheril was almost completely obliterated in one fell swoop. The remnants of Netheril were then targeted by the Phaerimm, who would have destroyed them and the rest of Faerûn had it not been for the intervention of the Sharn.