Question: Silent Night (German: "Stille Nacht, heilige Nacht" ) is a popular Christmas carol, composed in which year, by Franz Xaver Gruber, an Austrian primary school teacher, church organist and composer in the village of Arnsdorf? 
Context: Silent Night (German: "Stille Nacht" ) is a 1995 German-Swiss drama film directed by Dani Levy.  It was entered into the 46th Berlin International Film Festival where it won an Honourable Mention. Der Einsiedler ("The Hermit") Op.  144a, is a composition for baritone soloist, five-part choir and orchestra by Max Reger, written in 1915.  The German text is a poem by Joseph von Eichendorff, beginning "Komm' Trost der Welt, du stille Nacht " (Come, consolation of the world, you quiet night).  The composition was published in 1916 after Reger's death by N. Simrock, combined with the "Hebbel Requiem", as "Zwei Gesänge für gemischten Chor mit Orchester " (Two songs for mixed chorus with orchestra), Op. 144 . "K.u.k. Feldmarschall" Franz Xaver Joseph Conrad Graf von Hötzendorf German: "Franz Xaver Josef Graf Conrad von Hötzendorf" (11 November 1852 – 25 August 1925), sometimes anglicised as Hoetzendorf, was an Austrian Field Marshal and Chief of the General Staff of the armed forces of the Austro-Hungarian Army and Navy 1906–1917.  He was the Empire's chief of staff during the 1914 July Crisis that led to the outbreak of World War I.  He argued persuasively for preventive war against Serbia, saying it was needed to hold together his polyglot empire on the verge of breaking down.  He later decided that Austria acted too late, and its failure to fight earlier was a fatal mistake.  He admitted his army was not ready for war, and therefore emphasized the political necessity.  He failed to realize that Germany would force him to put his chief assets on the Russian front, rather than Serbia.  Conrad was fearful of attacking Russia and when Russia nearly broke through the Carpathian mountains and Conrad's Carpathian Offensive failed Italy entered the war thinking the Empire was collapsing.  It was not a good time however as Germany helped Austria break through Russia and the taking of Serbia so Conrad shifted his attention away from the Balkans toward Italy and Russia.  From early 1915 his forces were increasingly dependent on German support and command.  Without German support the Austrian army was a spent force. "Silent Night" (German: "Stille Nacht, heilige Nacht" ) is a popular Christmas carol, composed in 1818 by Franz Xaver Gruber to lyrics by Joseph Mohr in the small town of Oberndorf bei Salzburg, Austria.  It was declared an intangible cultural heritage by UNESCO in 2011.  The song has been recorded by a large number of singers from every music genre.  The version sung by Bing Crosby is the third best-selling single of all-time. Night of Silence is a Christmas carol and Roman Catholic Advent hymn, written in 1981 by American composer, Daniel Kantor, and then published in 1984 by GIA Publications.  The carol is a quodlibet, the term used for a partner song that can be sung simultaneously with another song.  ("Night of Silence" can be sung simultaneously with the Christmas carol "Silent Night").  It has been recorded by Marty Haugen, David Haas, Yvonne Kenny, Chris Squire, St. Olaf College, Cantus, Theocracy, and many other choirs and singers worldwide. Franz Xaver Süssmayr (German: "Franz Xaver Süßmayr" or "Suessmayr" in English; 1766 – September 17, 1803) was an Austrian composer and conductor.  Popular in his day, he is now known for his completion of Wolfgang Amadeus Mozart’s Requiem in D Minor.  In addition, there have been performances of Süssmayr’s operas at Kremsmünster, and a new version of his cantata "Der Retter in Gefahr" was performed.  There are also CD recordings of his unfinished clarinet concerto (completed by Michael Freyhan), one of his German requiems, and his Missa Solemnis in D. The church's rector from 1862 to 1869 was Phillips Brooks, probably most famous as the author of the lyrics to the familiar Christmas carol "O Little Town of Bethlehem".  Renowned (and sometimes reviled) for his ebullient homilies and his staunch opposition to slavery, Brooks delivered a eulogy to Abraham Lincoln in the church on April 23, 1865, following the U.S. President's assassination on April 14.  This sermon was reprinted and widely read.  After the end of the American Civil War, Brooks took a sabbatical from the church to travel to Europe, Israel and Palestine.  His visit to Bethlehem inspired him to write a poem for his Sunday School students, and for the church's 1868 Christmas season he had church organist Louis Redner set the poem to music.  The result was “O Little Town of Bethlehem." Memorial for Franz Xaver Gabelsberger is a monument located in Maxvorstadt, Munich, Bavaria, Germany.  The monument is a bronze sculpture by the German sculptor Syrius Eberle.  It was dedicated shortly after the hundredth anniversary of the birth of Franz Xaver Gabelsberger (1789-1849), the inventor of a cursive shorthand system.  Casting was by Ferdinand von Miller. Franz Xaver Gruber (25 November 1787 – 7 June 1863), was an Austrian primary school teacher, church organist and composer in the village of Arnsdorf, who is best known for composing the music to "Stille Nacht" ("Silent Night"). The Silent Night Chapel (Stille-Nacht-Kapelle) is located in the town Oberndorf bei Salzburg in the Austrian province of Salzburg and is a monument to the Christmas carol "Silent Night" and its librettist, Joseph Mohr and composer, Franz Xaver Gruber.  It stands in place of the former St. Nicholas Church, where on 24 December 1818 the Christmas carol was performed for the first time.
Answer: 1818