World Wars
World War I
A war triggered by a single assassination that, thanks to a web of alliances, dragged the entire European continent into fighting within weeks.
World War II
The deadliest conflict in human history is also the one that quietly shaped almost every major institution the world still runs on today.
The Cold War
A four-decade standoff between two superpowers who never fought each other directly, but came within minutes of nuclear war more than once.