The Fifth Day of Christmas: Silent Night

 This is the quintessential Christmas carol, I suppose. It is the one most associated with the famous Christmas Truce of 1914, when German and English-speaking troops sang the song together. I remember my father using, in his sermons, the legend of the song's first performance by Frans Gruber when Gruber's church organ was disabled. Hundreds of performers have recorded the song. 

Here the famous Three Tenors, Placido Domingo, Jose Carreras, and Luciano Pavarotti, sing "Silent Night".

And here is the story of Silent Night as I tell it.