Sino Persian relations

Loanwords

Mainly through trade on the Silk Road was it that Middle Persian words for exotic commodities were loaned into Chinese. Oddly, these loanwords are typically themselves loans from a pre-Iranian substrate, e.g. Elamite or BMAC:

Parthian era

The Chinese explorer Zhang Qian, who visited the neighbouring countries of Bactria and Sogdiana in 126 BCE, made the first known Chinese report on Parthia. In his accounts Parthia is named "Ānxī" (Chinese: 安息), a transliteration of "Arsacid", the name of the Parthian dynasty. Zhang Qian clearly identifies Parthia as an advanced urban civilization, which he equates to those of Dayuan (in Ferghana) and Daxia (in Bactria).

"Anxi is situated several thousand li west of the region of the Great Yuezhi (in Transoxonia). The people are settled on the land, cultivating the fields and growing rice and wheat. They also make wine out of grapes. They have walled cities like the people of Dayuan (Ferghana), the region contains several hundred cities of various sizes. The coins of the country are made of silver and bear the face of the king. When the king dies, the currency is immediately changed and new coins issued with the face of his successor. The people keep records by writing on horizontal strips of leather. To the west lies Tiaozi (Mesopotamia) and to the north Yancai and Lixuan (Hyrcania)." (Shiji, 123, Zhang Qian quote, trans. Burton Watson).

Following Zhang Qian's embassy and report, commercial relations between China, Central Asia, and Parthia flourished, as many Chinese missions were sent throughout the 1st century BCE: "The largest of these embassies to foreign states numbered several hundred persons, while even the smaller parties included over 100 members… In the course of one year anywhere from five to six to over ten parties would be sent out." (Shiji, trans. Burton Watson).

The Parthians were apparently very intent on maintaining good relations with China and also sent their own embassies, starting around 110 BC: "When the Han envoy first visited the kingdom of Anxi (Parthia), the king of Anxi dispatched a party of 20,000 horsemen to meet them on the eastern border of the kingdom… When the Han envoys set out again to return to China, the king of Anxi dispatched envoys of his own to accompany them… The emperor was delighted at this." (Shiji, 123, trans. Burton Watson).

Parthians also played a role in the Silk Road transmission of Buddhism from Central Asia to China. An Shih Kao, a Parthian nobleman and Buddhist missionary, went to the Chinese capital Luoyang in 148 CE where he established temples and became the first man to translate Buddhist scriptures into Chinese.

Sasanian era

Like their predecessors the Parthians, the Sasanian Empire maintained active foreign relations with China, and ambassadors from Persia frequently travelled to China. Chinese documents record thirteen Sasanian embassies to China. Commercially, land and sea trade with China was important to both the Sasanian and Chinese Empires. Large numbers of Sasanian coins have been found in southern China, confirming maritime trade.

On various occasions, Sasanian kings sent their most talented Persian musicians and dancers to the Chinese imperial court. Both empires benefited from trade along the Silk Road, and shared a common interest in preserving and protecting that trade. They cooperated in guarding the trade routes through central Asia, and both built outposts in border areas to keep caravans safe from nomadic tribes and bandits.

During the Liang Dynasty in China, in 547 a Persian embassy paid tribute to the Liang, amber was recorded as originating from Persia by the Liang Shu (Book of Liang).

There are record of several joint Sasanian and Chinese efforts against their common Hephtalite enemy. Following encroachments by the nomadic Turkic on states in Central Asia, we also see what looks like a collaboration between Chinese and Sasanian forces to repel the Turkic advances. Documents from Mt. Mogh also note the presence of a Chinese general in the service of the king of Sogdiana at the time of the Arab invasion.

Following the invasion of Iran by Muslim Arabs, Peroz III, son of Yazdegerd III, escaped along with a few Persian nobles and took refuge in the Chinese imperial court. Both Peroz and his son Narsieh (Chinese neh-shie) were given high titles at the Chinese court. At least in two occasions, last one possibly in 670, Chinese troops were sent with Peroz in order to restore him to the Sasanian throne with mixed results, one possibly ending up in a short rule of Peroz in Sistan (Sakestan) from which we have a few remaining numismatic evidence. Narsieh later attained the position of commander of the Chinese imperial guards and his descendants lived in China as respected princes.

Islamic era

After the Islamic conquest of Persia, Persia continued to flourish during the Islamic Golden Age and its relations with China continued. In 751, the Abbasid Caliphate which ruled Persia was in dispute with the Tang Dynasty of China for control of the Syr Darya region during the Battle of Talas. The commander of the Abbasid army was Zayid ibn Salih, a Persian, while the commanders of the Tang army were Gao Xianzhi, a Goguryo Korean, alongside Li Siye and Duan Xiushi, both Chinese. After the Abbasids won the battle, relations improved and there were no more conflicts between China and the Persians.

A large number of Central Asian and Persian soldiers, experts, and artisans were recruited by the Mongol Yuan Dynasty of China. Some of them, known as semu ("assorted officials") occupied important official posts in the Yuan state administration. One of the most famous settlers from Persia was Sayyid Ajjal Shams al-Din Omar, who is identified as an ancestor of many Chinese Hui lineages and that of Yunnan's Panthay Hui population. His most famous descendant was Zheng He, who became the Ming dynasty's most famous explorer.

Relations continued during the Ming Dynasty.

The famous Maragheh observatory in Maragheh, Iran, is also known to have had some Chinese astronomers working there alongside Iranian astronomers, and some Iranian astronomical instruments were also being used by astronomers in China. Safavid Iranian art was also partly influenced by Chinese art to an extent. Shah Abbas had hundreds of Chinese artisans in his capital Esfahan. 300 Chinese potters produced glazed tile buildings, and hundreds of others produced metalwork, miniature paintings, calligraphy, glasswork, tile work, and pottery. From E. Sykes's "Persia and Its People": "Early in the seventeenth century, Shah Abbas imported Chinese workmen into his country to teach his subjects the art of making porcelain, and the Chinese influence is very strong in the designs on this ware. Chinese marks are also copied, so that to scratch an article is sometimes the only means of proving it to be of Persian manufacture, for the Chinese glaze, hard as iron, will take no mark."

Of the Chinese Li family in Quanzhou, Li Nu, the son of Li Lu, visited Hormuz in Persia in 1376, married a Persian or an Arab girl, and brought her back to Quanzhou. Li Nu was the ancestor of the Ming Dynasty reformer Li Chih.

People's Republic of China and Islamic Republic of Iran

Diplomatic links between China and Iran have been maintained into the 20th and 21st centuries with the formation of both the People's Republic of China and the Islamic Republic of Iran, in 1949 and 1979 respectively.