If the world was completely working under one system, then some bastard would want to change it. Everyone knew what centigrade was, so it became celcius. And what was wrong with Fahrenheit? If you don't live at the seaside, you can't check either scale, and why would you want to!
The metric system is an arbitrary set of measurements which were devised for Napoleon and promoted by him throughout his empire. Now it is being pushed by the Euro-tyrants and their sycophants. Little would-be napoleons to a 'person.'



There. I feel better now.