The Jurakan

As far back as the oral traditions of the Ara go, they speak of a time that was marked by chaotic influences, a sort of prehistoric development for their people but nevertheless a marker of their rise to developing societies and expanding throughout the Castraversi. The most defining feature of this chaotic time was a disaster known as the Jurakan, where the Planar Otapi was struck by a cosmic storm that was described as intentional and was the immediate cause for the development of the many Selars that now rotate around the super-Form's place in the Framework.
No one can accurately describe how anyone can retain the memory of an event that effectively sundered a Planar, seeing as something like that would have had taken place several billion years in the past, and those that insist it is a part of their history tend to get ignored or worse, decried and berated as liars. Further defining the tale of the Jurakan is one of many goals of The Erá because trying to figure out how anyone would have remembered the development of the Framework is of great importance to securing the history and the legends of their people.
The Jurakan is spoken as a massive cosmic disruption that seemed to strike the planet and cause it to break apart, and after the end of this event, the existence of the The Subselar Boundary of the Castraversi and the many Selars that were suddenly accessible were noted to originate after this event.
What remains to be difficult to explain and is currently under investigation is how this can even be described as intentional. Due to the shaky information regarding this event and how it often underlies the base of stories shared between people, some mark it as unprovable and simply myth to help explain the existence of the odd conditions found in the Castraversi, but to others, who are dedicated to finding all the truth they can, say they can find why the predominant belief that this cosmic event was intentional and what exactly that entails.