Days of Auld Lang What?

The origin of the New Year's anthem—and what it means to us.
By PEGGY NOONAN

You know exactly when you'll hear it, and you probably won't hear it again for a year. The big clock will hit 11:59:50, the countdown will begin—10, 9, 8, 7, 6, 5, 4—and the sounds will rise: the party horns, fireworks and shouts of "Happy New Year!"