The Dragonfall

In prehistoric times, a calamity of unparalleled magnitude laid the foundation for life and magic in The Unnamed Land. This event is commonly known as The Dragonfall.

Etymology
The term itself comes from Draconicism, but has been widely adopted even among nonpractitioners. It is based on the belief that an enormous Astral Dragon collided with the planet. Those who do not wish to invoke religious terminology typically use the term "the impact", and posit that the planet was struck by an enormous meteor.

Initial Effects
In addition to physically reshaping the surface of the planet, the impact also brought many strange energies from the void and beyond, as well as a storm of comets and meteorites that lasted for millennia. These energies are believed to be the basis for magic in the Unnamed land, and the meteorites that made it to the surface contain many strange and powerful materials.

The Echo
The Echo is a much later event that is believed to have been an aftershock of the Dragonfall. The primitive peoples of the time had no way of studying it, and the documentation surrounding it is often inconsistent. Many consider it to be more important an event than The Dragonfall, as it has had more influence on modern society. Entire civilizations appeared from thin air and others vanished entirely, while certain planes became inaccessible and others that were previously unknown opened themselves to travel.

The full extent of The Echo and most of it's effects will forever remain a mystery.