Back when I was a Catholic-school kid in northern Wisconsin, my school lessons briefly focused on the metric system. This was in the late 1970s. Along with learning cursive and the referents of rosary ...

The metric system is used in 95 percent of the world. The United States is among the few countries that doesn’t use this system. In a globalized world, countries don’t have to convert between each ...

Using both the imperial and metric system for measuring and weighing can cause confusion THE imperial and metric systems can often cause confusion when it comes to taking measurements. Here's why we ...

On April 19, 1973, Wilson Riles, superintendent of public instruction for California. called to announce that beginning in 1976 the metric system would be taught in California. The reaction from the ...

Atlas Obscura on Slate is a blog about the world’s hidden wonders. Like us on Facebook and Tumblr, or follow us on Twitter. For better or worse, the United States remains one of only three countries ...