What is the name of the poem that begins with 'Twas the night before Christmas'?

The poem beginning “’Twas the night before Christmas” is A Visit from St. Nicholas.

It was first published anonymously in the Troy Sentinel newspaper on December 23, 1823, under the title “Account of a Visit from St. Nicholas.” The 56-line poem helped establish enduring details of the modern Santa Claus image, including his miniature sleigh, reindeer, chimney visit, and cheerful departure.

The poem is widely known by two unofficial titles: “The Night Before Christmas” and “’Twas the Night Before Christmas,” the latter taken from its opening words. “A Visit from St. Nicholas” remains the formal title most commonly used in reference works and literary discussions.

Clement Clarke Moore claimed authorship in 1837, but some researchers have attributed the poem to Henry Livingston Jr. That authorship debate does not change the answer to the quiz question. The poem also helped popularize Santa as a magical Christmas Eve visitor rather than only a religious or charitable Saint Nicholas figure.