> Europe had zillions of them The world had zillions of them, and yet the world (minus some strong-headed minds) switched to it. Centuries ago. What is specia

> Europe had zillions of them The world had zillions of them, and yet the world (minus some strong-headed minds) switched to it. Centuries ago. What is special about the US is that there is still some commercial value in converting from standard metric units to this specific US system.