High Quality Content by WIKIPEDIA articles! Yongbieocheonga literally means Songs of the Dragons Flying to Heaven and was the first work written in hangul. 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 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.