Andersen's initial attempts at writing fairy tales were revisions of stories that he heard as a child. Andersen then brought this genre to a new level by writing a vast number of fairy tales that were both bold and original. Initially they were not met with recognition, due partly to the difficulty in translating them and capturing his genius for humor and dark pathos. It was during 1835 that Andersen published the first two installments of his immortal Fairy Tales (Danish: Eventyr; lit. "fantastic tales"). More stories, completing the first volume, were published in 1837. The collection comprises nine tales, including "The Tinderbox", "The Princess and the Pea", "Thumbelina", "The Little Mermaid", and "The Emperor's New Clothes". The quality of these stories was not immediately recognized, and they sold poorly. At the same time, Andersen enjoyed more success with two novels, O.T. (1836) and Only a Fiddler (1837); the latter was reviewed by the young Søren Kierkegaard. After a visit to Sweden in 1837, Andersen became inspired by Scandinavism and committed himself to writing a poem that would convey the relatedness of Swedes, Danes, and Norwegians. It was in July 1839, during a visit to the island of Funen, that Andersen first wrote the text of his poem, Jeg er en Skandinav ("I am a Scandinavian"). Andersen composed the poem to capture "the beauty of the Nordic spirit, the way the three sister nations have gradually grown together", as part of a Scandinavian national anthem. Composer Otto Lindblad set the poem to music, and the composition was published in January 1840. Its popularity peaked in 1845, after which it was seldom sung. Andersen spent two weeks at the Augustenborg Palace in the autumn of 1844. Andersen returned to the fairy tale genre in 1838 with another collection, Fairy Tales Told for Children. New Collection. First Booklet (Eventyr, fortalte for Børn. Ny Samling), which consists of "The Daisy", "The Steadfast Tin Soldier", and "The Wild Swans". The year 1845 heralded a breakthrough for Andersen with the publication of four different translations of his fairy tales. "The Little Mermaid" appeared in the periodical Bentley's Miscellany. It was followed by a second volume, Wonderful Stories for Children. Two other volumes enthusiastically received were A Danish Story Book and Danish Fairy Tales and Legends. A review that appeared in the London journal The Athenæum (February 1846) said of Wonderful Stories, "This is a book full of life and fancy; a book for grandfathers no less than grandchildren, not a word of which will be skipped by those who have it once in hand." Andersen would continue to write fairy tales, and he published them in installments until 1872.