In Monday's puzzle, 27-Across read [Greek letter X], which was either a gimme or a "Now, which one is that again..?" for most solvers. CHI it was, but it is tough to keep track sometimes. Four of ...

Over 2,000 years ago, Eucleides, ruler or "archon" or ancient Athens, Greece, helped usher in a standardized Greek alphabet. That alphabet eventually led to the Latin letters we now use.

Greek letters were used once before — in 2005, Graham says, after another busy storm season ripped through the names on the government's list. "We have a list that rotates every six years — a ...