The lyrics to Silent Night were written by Josef Mohr, a man whose name was unloved in his home town of Salzburg. Mohr was one of three illegitimate sons to Anna Schoiberin, while his father, Franz, was a mercenary soldier who eventually abandoned the family. To make matters worse, Josef’s godfather was the town executioner.

Perhaps due to his mother’s poverty, the curate of the local Catholic cathedral took Josef in as a foster child. Josef had a proclivity toward music, which was encouraged by the church, and he eventually decided himself to pursue the priesthood. He was ordained August 21, 1815, and was sent to Oberndorf, just north of Salzburg. He there met Franz Xaver Gruber, a local schoolteacher who would become organist at Old Saint Nicholas Church the following year.

Gruber came from equally humble origins, and himself took comfort in his music. The friendship of the two is what led to the creation of Silent Night.

Silent Night—or Stille Nacht in the original German—was created because Mohr needed a carol for worship. On Christmas Eve of 1818, Mohr visited Gruber with a poem he had written a few years earlier. Gruber quickly arranged the song to be played on a guitar with a choir because the church organ was broken. That evening at Midnight Mass, Gruber strapped on his guitar and led the congregation at St. Nicholas in the first rendition of Silent Night.

The original arrangement was a bit faster than the slow, reflective version of the song we know today. But the song was an immediate hit, later being sung by traveling tours and performed before King Frederick William IV of Prussia. Later in the 1800s, the hymn was translated into English and made its way to America by way of a book called Sunday School Hymnal, though with only three of the original six verses.

Today, Silent Night is perhaps the most famous Christmas carol in history. It has been translated into most languages, and the Bing Crosby version is the third-bestselling single in history. A rebuilt Silent Night Chapel in Oberndorf is now a cultural landmark (a replica can be found in Frankenmuth, Michigan). The song itself was even declared to be an intangible cultural heritage by UNESCO in 2011.

1 Silent night! Holy night!
All is calm, all is bright
Round the virgin mother and child;
Holy infant, tender and mild,
Rests in heavenly peace.

2 Silent night! Holy night!
Guiding star, lend thy light.
See, the eastern wise men bring
Gifts and homage to our King,
Jesus Christ is here.

3 Silent night! Holy night!
Wondrous star, lend thy light.
With the angels let us sing
Hallelujahs to our King,
Jesus Christ is here.