Language is always evolving, and that’s also true for American Sign Language. A century ago, the sign for “telephone” was one fist below your mouth and the other at your ear, as if you’re holding an old-fashioned candlestick phone. Now you can sign “phone” with a one-handed gesture. Plus, colorful restaurant slang from the hit […]

Parts of the 10th-century _Archimedes Palimpsest_ have been unaccounted for since 1906.