Best Idea...

I believe that an idea that changed the whole, entire world was the thought of war. I want to get a time machine and go back in time, and murder the man who thought of war. War was pretty much the worst invention/thought in the world. Wars are also a big part of the world, the civil war, vietnam, Iraq. Also wars change a lot of things, like our independence from england. And another thing, war is usually the end of arguments, and it usually goes too far.