During a recent visit to the loo, I pondered a relatively simple question that made me curious. What were the most important things that man has created?
Now some would say things like fire, but man didn't create fire, man created ways to utilize it. Some would say things like TV, but modern technology sits on the shoulders of millions of crucial inventions, some far more crucial than others to have put us where we are today.
Now an obvious one would be the wheel. maybe gunpowder. I personally think the spring is a particularly critical invention.
So like I said, simple question, I was just curious what others could think of.