An Lushan rebellion in the context of "Yan (An–Shi)"

The Tang dynasty (/tɑːŋ/, [tʰǎŋ]; Chinese: 唐朝), or the Tang Empire, was an imperial dynasty of China that ruled from 618 to 907, with an interregnum between 690 and 705. It was preceded by the Sui dynasty and followed by the Five Dynasties and Ten Kingdoms period. Historians generally regard the Tang as a high point in Chinese civilisation, and a golden age of cosmopolitan culture. Tang territory, acquired through the military campaigns of its early rulers, rivalled that of the Han dynasty.

The Li family founded the dynasty after taking advantage of a period of Sui decline and precipitating their final collapse, in turn inaugurating a period of progress and stability in the first half of the dynasty's rule. The dynasty was formally interrupted during 690–705 when Empress Wu Zetian seized the throne, proclaiming the Wu Zhou dynasty and becoming the only legitimate Chinese empress regnant. The An Lushan rebellion (755–763) led to devastation and the decline of central authority during the latter half of the dynasty.

Emperor Xuanzong of Tang ([ɕwǎn.tsʊ́ŋ]; 8 September 685 – 3 May 762), personal name Li Longji, was an emperor of the Tang dynasty of China, reigning from 712 to 756. His reign of 44 years was the longest during the Tang dynasty. Through two palace coups, he seized the throne and inherited an empire still in its golden age. He was initially assisted by capable chancellors like Yao Chong, Song Jing and Zhang Yue who were already serving as government officials before Xuanzong ascended the throne. However, under Emperor Xuanzong, the empire reached its turning point and went into sharp decline and near collapse, due to numerous political missteps throughout his long reign, such as over-trusting chancellors Li Linfu, Yang Guozhong and general An Lushan, with Tang's golden age ending in the An Lushan rebellion.

An Lushan (Chinese: 安祿山; pinyin: Ān Lùshān; 20th day of the 1st month (19 February) 703 – 29 January 757) was a Chinese military general and rebel leader during the Tang dynasty and is primarily known for instigating the An Lushan rebellion which devastated China and killed millions of people.

An Lushan was of Sogdian and Göktürk origin, at least by adoption. He rose to prominence as a general by defending the northeastern Tang frontier from the Khitans and other threats. Through his frequent visits to Chang'an, the Tang capital, An Lushan managed to gain favour with Emperor Xuanzong of Tang and Chancellor Li Linfu. By 751, he had been appointed military governor over three prefectures. After the death of Li Linfu in 753, An Lushan's rivalry with General Geshu Han and Chancellor Yang Guozhong created military tensions within the empire.

Shi Chaoyi (史朝義) (died before 17 February 763) was the final emperor of the Yan state that was established in Anshi rebellion against the Chinese Tang dynasty. He was the oldest son of Shi Siming, former subordinate of An Lushan, and he overthrew and then killed his father in a coup d'état in 761 and took over as emperor. However, he could not gain the allegiance of his father's subordinates, and was eventually defeated by the joint forces of the Tang dynasty and the Uyghur Khaganate. He committed suicide in flight.

Du Fu (Chinese: 杜甫; pinyin: Dù Fǔ; Wade–Giles: Tu Fu; 712–770) was a Chinese poet and politician during the Tang dynasty. Together with his elder contemporary and friend Li Bai, Du is often considered one of the greatest Chinese poets of his time. His greatest ambition was to serve his country as a successful civil servant, but Du proved unable to make the necessary accommodations. His life, like all of China, was devastated by the An Lushan rebellion of 755, and his last 15 years were a time of almost constant unrest.

Although initially he was little-known to other writers, his works came to be hugely influential in both Chinese and Japanese literary culture. Of his poetic writing, nearly fifteen hundred poems have been preserved over the ages. He has been called the "Poet-Historian" and the "Poet-Sage" by Chinese critics, while the range of his work has allowed him to be introduced to Western readers as "the Chinese Virgil, Horace, Ovid, Shakespeare, Milton, Burns, Wordsworth, Béranger, Hugo or Baudelaire".

The Battle of Talas (Chinese: 怛羅斯戰役; pinyin: Dáluósī Zhànyì; Arabic: معركة نهر طلاس, romanized: Maʿrakat nahr Ṭalās) was an armed confrontation between the Abbasid Caliphate along with the Tibetan Empire against the Tang dynasty in 751. In July of that year, the Tang and Abbasid armies clashed at the Talas River over control of the regions surrounding the Syr Darya. The Tang army under Gao Xianzhi was defeated by the Abbasid army under Ziyad ibn Salih (ar) and Karluk mercenaries. Sources differ on whether the Karluks defected to the Abbasids or if they were Abbasid allies from the start. According to Arabic sources, the defeat marked the end of Tang westward expansion in Transoxiana.

After the battle, the caliph dispatched an envoy to the emperor, who arrived in December 752 to negotiate the restoration of diplomatic relations. After reconciling with the Abbasids, the Tang reconquered Gilgit. With the An Lushan rebellion in 755, Abbasid influence and control west of the Pamir Mountains was able to spread without opposition from the Tang government, which redeployed all available military forces back into China's interior in order to suppress the rebellion. Chinese prisoners captured at Talas in 751 are said to have introduced papermaking to the peoples of West Asia, although this account is disputed by several findings.