The Convergence

"And thus, the lord finally looked away, his gaze drawn by the victorious devil's antics. 'Twas but only for a brief moment, but in that time, everything changed"
-the catholic bible 
The Convergence, also known as the Conjunction, the Illumination, the Worldbleed, and God's Slip-Up, was a class 5 reality restructuring event that occurred over the span of two days on December 31st, 2020 AD. The event was caused by the collision between the realities of Cosmos (Earth), and Annaad (Arkon). The event caused around 20 million extradimensional people to appear on Earth, along with 13 pieces of the Arkonic crust. Over thirty-thousand terrans died during the shift, or during the aftermath. 
The Convergence changed the direction of Earth's course forever, introducing magic, other worlds, and aliens. To this day the aftershocks of the Convergence cause lesser rifts to open up all over Earth, and the relative disability caused by the event allows certain people known as mages to use magic.