nori. Both titles are derived from names of characters in the plays. No theory has been formulated as to the origin and development of these plays. The plots of the puppet plays, like those of the mask plays, are full of satiric social criticism. The characters—Pak Ch'omji, governor of P'yongam, Kkoktukaksi, Buddhist monk, and Hong Tongji—dance and sing, enacting familiar tales that expose the malfeasance of the ruling classes. (see also puppetry) The final type of folk literature is found in the texts of p'ansori of the Yi dynasty. These texts were first recorded in the 19th century as verse, but the written forms were later expanded into p'ansori fiction, widely read among the common people. This transformation from poetry to narrative fiction was easily accomplished, since p'ansori were always narrative. Originally the entire p'ansori performance repertoire consisted of 12 madang ("titles"). Although all 12 remain as narrative fiction, only five of them are sung today. The texts evolved gradually from the legends, which provided their sources and were altered and expanded as they were passed from one performer to another. History The early Joseon period Yongbi eocheonga (hangul: 용비어천가, hanja: 龍 飛 御 天 歌) literally means "Songs of the Dragons Flying to Heaven". It was compiled during the reign of Sejong the Great as an official recognition of the Joseon dynasty and its ancestral heritage as the forerunners of Joseon, the Golden Age of Korea. The Songs were composed through the efforts of a committee of Confucian philologists and literati in the form of 125 cantos. This compilation was the first piece of Korean text to depart from a long history reliant on Chinese characters and be recorded in Hangul, the first and official alphabet of Korea. There are several underlying themes in addition to the establishment of the Joseon Dynasty which are of significant importance to understanding the events that provoked the creation of these poems: linear events that took place in China, the apotheosis of virtuous Kings proceeding the fall of the Goryeo Dynasty, and Confucian political and philosophical ideologies of the era in rejection to Buddhism. Each of the poems included in the work convey deep-seated feelings of nationalism and a proud proclamation of cultural independence from the Mongol empire. The late Joseon period Modern Korean literature developed against the background of the Joseon Dynasty's fall. This first period of modern Korean literature is often