O Holy Night is my favorite Christmas carol. It bring tears to my eyes if I really think about the words. It is amazing and beautiful. I wanted to know more about it, so I went to trusty Wikipedia, and here is what I learned.

O Holy Night ("Cantique de Noël") is a well-known Christmas carol composed by Adolphe Adam in 1847 to the French poem "Minuit, chrétiens" by Placide Cappeau (1808-1877), an accomplished amateur. Cappeau was asked to write a Christmas poem by a parish priest. It has become a standard modern carol for solo performance with an operatic finish.

In the carol, the singer recalls the birth of Jesus. It was translated into English by Unitarian minister John Sullivan Dwight, editor of Dwight's Journal of Music in 1855 (note the abolitionist reference in the third verse: "for the slave is our brother"), and lyrics also exist in other languages.

On 24 December 1906, Reginald Fessenden, a Canadian inventor, broadcast the first AM radio program, which included him playing "O Holy Night" on the violin. The carol therefore appears to have been the first piece of music to be broadcast on radio.

I have added the lyrics to O Holy Night and the English translation of the poem, Minuit, chrétiens in the extended entry.  So if you would like to read the lyrics or the poem, click continue reading.  I think that it is really interesting to note that the English version of O Holy Night is not a direct translation of the French poem.