Most fans believe H.P. Lovecraft drew inspiration for the Cthulhu mythos from a variety of sources- Science fiction and mythological beings as the physical inspiration for the creatures, cosmic indifferentism and nihilism as the philosophical influence behind the stories, and horror the plot vehicle that drives the terror home.
Whelp, looks like we were wrong! Thanks for setting us straight Ethan Vincent of Oppressive Silence!
-Via Geeks Are Sexy