[DISCUSSION] What To Know Before I Read Blue Beetle #1?

What new characters do I need to know of? What old events do I need to know of? What do I need to know about Graduation Day?

Source: Blue Beetle #1 Cover by Adrian Gutierrez & Luis Guerrero

What new characters do I need to know of? What old events do I need to know of? What do I need to know about Graduation Day?

Source: Blue Beetle #1 Cover by Adrian Gutierrez & Luis Guerrero