Qu Yuan (340 BC – 278 BC) was a Chinese poet and politician in the State of Chu during the Warring States period. He is known for his patriotism and contributions to classical poetry and verses, especially through the poems of the Chu Ci anthology (also known as The Songs of the South or Songs of Chu): a volume of poems attributed to or considered to be inspired by his verse writing. Together with the Shi Jing, the Chu Ci is one of the two greatest collections of ancient Chinese verse. He is also remembered in connection to the supposed origin of the Dragon Boat Festival. Historical details about Qu Yuan's life are few, and his authorship of many Chu Ci poems has been questioned at length. However, he is widely accepted to have written "The Lament," a Chu Ci poem. The first known reference to Qu Yuan appears in a poem written in 174 BC by Jia Yi, an official from Luoyang who was slandered by jealous officials and banished to Changsha by Emperor Wen of Han. While traveling, he wrote a poem describing the similar fate of a previous "Qu Yuan." Eighty years later, the first known biography of Qu Yuan's life appeared in Han dynasty historian Sima Qian's Records of the Grand Historian, though it contains a number of contradictory details. The only surviving source of information on Qu Yuan's life is Sima Qian's biography of him in Records of the Grand Historian (Shiji), although the biography is circumstantial and probably influenced greatly by Sima's own identification with Qu. Sima wrote that Qu was a member of the Chu royal clan and served as an official under King Huai of Chu (reigned 328–299 BC). During the early days of King Huai's reign, Qu Yuan was serving the State of Chu as its Left Minister. However, King Huai exiled Qu Yuan to the region north of the Han River, because corrupt ministers slandered him and influenced the king. Eventually, Qu Yuan was reinstated and sent on a diplomatic mission to the State of Qi. He tried to resume relations between Chu and Qi, which King Huai had broken under the false pretense of King Hui of Qin to cede territory near Shangyu.