The basic structure of the universe are as follows. 
[indent]There are aliens that have already made contact with our planet. 
Advanced tech exists, but isn’t completely common.
Magic, powers, and supers are accepted as everyday life events.
There have been world ending events but only one of which is known to the public.
There are laws that govern Superheroes (don’t think accords) as a international force.[/indent]
Major Events:

Superheroes:
[indent]The Magician - Retired
Black Justice (Anti-hero) - Retired[/indent]