Did you know that OK, is probably the most universal word in the world? In almost every language OK, is used to mean *all right* or *yes*. The word first appeared in Boston, Massachusetts, USA, in a newspaper called the Boston Morning post on March 23rd, 1839. It was used as a joke meaning *Oll Korrect* (All Correct). It soon became very popular and eventually spread to languages around the world.