[quote=@Zarkun][sub][i]<Snipped quote by yoshua171>[/i][/sub]
You're going to need to be a little more specific. What happened is public knowledge if that's what you're asking.[/quote]
Is it known [i]why[/i] it happened? Aka, what caused Zeref and the "Slayers," to do what they did? Or is it just documented that they did "X thing" thus bringing the world to a time of darkness before they were defeated.