demands of the available markets for publication, and the evolution of the form seems closely tied to the evolution of the publishing industry and the submission guidelines of its constituent houses. As a point of reference for the genre writer, the Science Fiction and Fantasy Writers of America define short story length in the Nebula Awards for science fiction submission guidelines as having fewer than 7,500 words. History Short stories date back to oral storytelling traditions which originally produced epics such as the Ramayana, the Mahabharata, and Homer's Iliad and Odyssey. Oral narratives were often told in the form of rhyming or rhythmic verse, often including recurring sections or, in the case of Homer, Homeric epithets. Such stylistic devices often acted as mnemonics for easier recall, rendition, and adaptation of the story. Short sections of verse might focus on individual narratives that could be told at one sitting. The overall arc of the tale would emerge only through the telling of multiple such sections. According to Azhikode, the short story has existed "in the most ancient times as the parable, the adventure-story of men, gods and demons, the account of daily events, the joke". All languages have had variations of short tales and stories almost since their inceptions. Emerging in the 17th century from oral storytelling traditions, the short story has grown to encompass a body of work so diverse as to defy easy characterization. "The short story as a carefully contrived literary form is of modern origin", wrote Azhikode. Another ancient form of short story, the anecdote, was popular under the Roman Empire. Anecdotes functioned as a sort of parable, a brief realistic narrative that embodies a point. Many surviving Roman anecdotes were collected in the 13th or 14th century as the Gesta Romanorum. Anecdotes remained popular throughout Europe well into the 18th century with the publication of the fictional anecdotal letters of Sir Roger de Coverley. In Europe, the oral story-telling tradition began to develop into written form in the early 14th century, most notably with Geoffrey Chaucer's Canterbury Tales and Giovanni Boccaccio's Decameron. Both of these books are composed of individual short stories, which range from farce or humorous anecdotes to well-crafted literary fiction, set within a larger narrative story (a frame story), although the frame-tale device was not adopted by all writers. At the end of the 16th century, some of the most popular short stories