Happy ending in the context of "Once upon a time"

Ancient Greek comedy (Ancient Greek: κωμῳδία, romanized: kōmōidía) was one of the final three principal dramatic forms in the theatre of classical Greece; the others being tragedy and the satyr play. Greek comedy was distinguished from tragedy by its happy endings and use of comically exaggerated character archetypes, the latter feature being the origin of the modern concept of the comedy. Athenian comedy is conventionally divided into three periods; Old Comedy survives today largely in the form of the eleven extant plays of Aristophanes; Middle Comedy is largely lost and preserved only in relatively short fragments by authors such as Athenaeus of Naucratis; New Comedy is known primarily from the substantial papyrus fragments of Menander. A burlesque dramatic form that blended tragic and comic elements, known as phlyax play or hilarotragedy, developed in the Greek colonies of Magna Graecia by the late 4th century BC.

The philosopher Aristotle wrote in his Poetics (c. 335 BC) that comedy is a representation of laughable people and involves some kind of blunder or ugliness which does not cause pain or disaster. C. A. Trypanis wrote that comedy is the last of the great species of poetry Greece gave to the world.

A fairy tale (alternative names include fairytale, fairy story, household tale, magic tale, or wonder tale) is a short story that belongs to the folklore genre. Such stories typically feature magic, enchantments, and mythical or fanciful beings. In most cultures, there is no clear line separating myth from folk or fairy tale; all these together form the literature of preliterate societies. Fairy tales may be distinguished from other folk narratives such as legends (which generally involve belief in the veracity of the events described) and explicit moral tales, including beast fables. Prevalent elements include dragons, dwarfs, elves, fairies, giants, gnomes, goblins, griffins, merfolk, monsters, monarchy, pixies, talking animals, trolls, unicorns, witches, wizards, woodwoses, magic, and enchantments.

In less technical contexts, the term is also used to describe something blessed with unusual happiness, as in "fairy-tale ending" (a happy ending) or "fairy-tale romance". Colloquially, the term "fairy tale" or "fairy story" can also mean any far-fetched story or tall tale; it is used especially to describe any story that not only is not true, but also could not possibly be true. Legends are perceived as real within their culture; fairy tales may merge into legends, where the narrative is perceived both by teller and hearers as being grounded in historical truth. However, unlike legends and epics, fairy tales usually do not contain more than superficial references to religion and to actual places, people, and events; they take place "once upon a time" rather than in actual times.

The Jātaka (Sanskrit for "Birth-Related" or "Birth Stories") are a voluminous body of literature native to the Indian subcontinent which mainly concern the previous births of Gautama Buddha in both human and animal form. Jataka stories were depicted on the railings and torans of the stupas. According to Peter Skilling, this genre is "one of the oldest classes of Buddhist literature." Some of these texts are also considered great works of literature in their own right. The various Indian Buddhist schools had different collections of jātakas. The largest known collection is the Jātakatthavaṇṇanā of the Theravada school, as a textual division of the Pāli Canon, included in the Khuddaka Nikaya of the Sutta Pitaka.

In these stories, the future Buddha may appear as a king, an outcaste, a deva, an animal—but, in whatever form, he exhibits some virtue that the tale thereby inculcates. Often, Jātaka tales include an extensive cast of characters who interact and get into various kinds of trouble – whereupon the Buddha character intervenes to resolve all the problems and bring about a happy ending. The Jātaka genre is based on the idea that the Buddha was able to recollect all his past lives and thus could use these memories to tell a story and illustrate his teachings.

The tricky slave is a stock character. He is a clever, lower-class person who brings about the happy ending of a comedy for the lovers. He is more clever than the upper-class people about him, both the lovers and the characters who block their love, and typically also looking out for his own interests. In the New Comedy, the tricky slave (dolosus servus or servus callidus) aimed to get his freedom by assisting his young master in love.