Cthulhu is a fictional cosmic entity created by horror author H. P. Lovecraft in 1926. The first appearance of the entity was in the short story "The Call of Cthulhu" published in Weird Tales in 1928.
Cthulhu is one of the central Great Old One of the Lovecraft Mythos. It is often cited for the extreme descriptions given of its hideous appearance, its gargantuan size, and the abject terror that it evokes. Cthulhu is often referred to in science fiction and fantasy circles as a tongue-in-cheek shorthand for extreme horror or evil.
After its first appearance in "The Call of Cthulhu", Cthulhu makes a few minor appearances in other Lovecraft stories. August Derleth, a correspondent of Lovecraft's, used the creature's name to identify the system of lore employed by Lovecraft and his literary successors, the Cthulhu Mythos.
Cthulhu has also been spelled as Tulu, Clulu, Clooloo, Cthulu, C'thulhu, Cighulu, Cathulu, Kathulu, Kutulu, Kthulhu, Q’thulu, K'tulu, Kthulhut, Kulhu, Kutunluu, Ktulu, Cuitiliú, Thu Thu, and in many other ways. It is often preceded by the epithet Great, Dead, or Dread.
Read more about Cthulhu at Wikipedia
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