The question can't be answered yet, but, the 20th century had two wars that pretty much everyone knows about, the 21st has been a bunch of controversy, so far. So unless 5 world wars are starting in 50 years it's pretty obvious.
Alistair had just neatly arranged everything in his bag before turning around. Is that a... shaking? Is it? He crouched down. No that is shaking... and people are leaving? Do we have an earthquake club or something? Alistair picked himself up before creaking the school door open and looking at the forest. "I wonder if any classic horror movie villains live there... And now I want to go there..."