Yi Yin ( to , , born Yë Zhì (), also known as A Heng ()), was a Chinese politician who served as a minister of the early Shang dynasty and one of the honoured officials of the era. He helped Tang of Shang, the founder of the Shang dynasty, to defeat King Jie of Xia. Oracle inscriptions of Yi have been found, providing his social status was high; for example, on one occasion, a sacrifice made to him coincided with the day in which Bao Ding was to be venerated.
According to legend, Yi was a slave of a man named Youshen (). When Youshen's daughter married Tang of Shang as part of a dowry, he became Tang's slave. He was gifted in cooking, so Tang made him his chef and taught him how to balance the five flavours (sweet, sour, bitter, pungent, and salty) and the duration of heating foods. While he served Tang his meals, he used this opportunity to analyse the current issues of the time, such as the bad points of Jie of Xia. He also proposed his plan to overthrow Jie of Xia. He earned Tang's trust, became Tang's right-hand man and was made 'Yin (å°¹)', meaning "minister".
However, other versions of his life exist. In another story, Yi had never been enslaved. Tang had heard of him and tried five times to recruit him before Yi accepted his request for help. Additionally, Mencius fiercely denies the story of Yi Yin being a cook at all when asked by Wan Zhang, saying he was a farmer.
Tang moved to a place where the Xia capital was easily accessible. They stopped paying Jie taxes. Jie was furious and summoned the armies of his nine tribes to fight Tang. Then Yi assured Tang to wait for Jie of Xia's armies to drop in power. He explained to Tang that the noblemen who served Jie still had strong armies. So, they waited for a year until they launched an attack into the noblemen's states and won every battle.
However, when they were only five li from the capital, Yi called for a stop. He explained that the army needed a boost in morale, so Tang gave a speech to the soldiers, which became known as 'Tang's pledge' (湯誥, now in Shangshu). Afterwards, they defeated Jie of Xia in the decisive Battle of Mingtiao.
During the early Shang dynasty, Yi helped Tang set up different institutions, resulting in political stability and economic benefits.
After Tang died, two of his sons succeeded in gaining the throne, but they both died early. Therefore, Yi Yin was ruled as a regent by Tang's grandson, Taijia of Shang. What follows is still being determined. According to a popular theory, Yi wrote three essays to Taijia regarding his rule (ä¼Â訠chapter of the Shangshu). After reading the essays, Taijia adhered to them for the first two years but failed to do so from the third. He started to rule as he pleased and no longer followed any of the laws that the ancients had followed. He oppressed his subjects. He did not listen to Yi's advice. Seeing that Taijia would not give in, Yi banished the king to Tonggong(, archaic name for the tomb of Tang) and became the temporary ruler of China. Alternately (太ç² chapters in the Shangshu), Yi approached Taijia with several oral warnings which were not heeded, causing Taijia's exile. The measure was successful, and the king transformed.
After three years, Taijia was released, and Yi and some officials returned Taijia to the capital and returned Taijia's power. He started to use less oppressive laws and ruled the kingdom correctly. After Taijia's death, the next king, Woding of Shang, took over. In Woding's eighth year as king, Yi died. According to some legends, he was one hundred years old. Woding arranged a funeral for Yi Yin, which was made for the king. He sacrificed cattle, sheep and swine and mourned for three years.
Although this story is recorded in the Records of the Grand Historian, Mencius, and Zuo Zhuan, the Bamboo Annals records otherwise, according to this version, Yi and Taijia were, in fact, fighting for power. Yi had banished Taijia to his grandfather's tomb and then seized absolute power for seven years. Taijia escaped, murdered Yi and returned the throne. However, archaeological evidence based on contemporary records in oracle bone script showed that Yi was still worshipped by the Shang people, including the royal family, several hundred years after his death, calling the reliability of the latter account into question.
Yi Yin is venerated in around 40 oracle bone inscriptions, which are not only the earliest accounts of his existence, but also contradict narratives given in the Bamboo Annals that once gave a narrative of him being a usurper. In these inscriptions, Yi Yin is consulted for counsel on matters such as rain, and occasionally given sacrifices, such as the following: <blockquote> ä¹Â亥è²Âå ¶ä¾Âä¼Âå°¹äºÂçÂÂ<br> On the yihai day, scapulimancy was performed. Test: May we perform a you-sacrifice to Yi Yin? Two oxen.<br><br>
è¾Âå¯åÂÂä¾ÂäºÂä¼Âå°¹ä¸Âç¾Âä¸Âç¢<br> On the xinmao day, scapulimancy was performed. Should we perform a you-sacrifice to Yi Yin? One person of Qiang and one domestic ox. </blockquote>
In one oracle bone inscription, he is given a you sacrifice alongside five of the Six Spirits, placing him in extremely high regard in the Shang state religion: <blockquote> ç²ç³åÂÂä¾Âä¼Âå°¹äºÂ示<br> On the jiashen day, scapulimancy was performed. Should we perform a you-sacrifice to Yi Yin and Five Spirits? </blockquote>
Yi Yin is featured in several works as an active participant, though they are all from a post-Shang environment and thus their certainty is disputed. This is especially notable given the Zhou dynasty often edited Shang dynasty accounts. However, excavations at Mawangdui that rediscovered Yi Yin's "Nine Rulers" dialogue () and the release of the Tsinghua Bamboo Slips's Announcement of Yin () under the name of Yin's Oath () have led to increased confidence that Yi Yin's character is, at least partially, true.
Yi Yin is recorded in several works in the Book of Documents, including one where he is the direct speaker. However, as the text itself is a received one and—once-lost at the hands of Qin Shi Huang before being reconstructed by Fu Sheng—their legitimacy is considered questionable.
During the twelfth month of the first year of Tai Jia's reign (, after the death of Tang of Shang, Yi Yin dictated The Instructions of Yi ãÂÂãÂÂ. This was a crowning ceremony for Tai Jia, where a sacrifice was made to Tang, and Tai Jia was presented before the altar. Yi Yin speaks to the virtue of Tang, and then the virtue of Yu the Great, before warning Tai Jia of the perils of alcohol that Tang had allegedly warned of. However, in Tai Jia I (), it is recorded that these warnings were not heard, leading to his eventual expulsion in Tai Jia III ().
The accounts above are traditionally considered to be forgeries, mainly due to contradictions displayed by the Bamboo Annals during the Jin dynasty. Within the Bamboo Annals, it is stated that Yi Yin had actually seized the throne and ruled Shang for seven years, before Tai Jia returned and killed him, assigning Yi Yin's land to his sons, Yi She () and Yi Fen (). However, oracle bone evidence showing ancestor veneration of Yi Yin heavily implies he received praise rather than scorn, which has cast doubt on the idea. Comparative evidence made using excavated texts have noted that The Announcement of Yi in particular seems to have been written by a different scribe.
The Bamboo Annals are a chronicle of ancient Chinese history concluding around 299 BC. They were unearthed during the Western Jin dynasty, but due to poor preservation, quotations are spotty. Regardless, it is a valuable source of information. However, key details, such as one claiming he usurped the throne of Tai Jia, are contradicted by the fact Yi Yin is venerated by the Shang in oracle bones.
In total, Yi Yin is mentioned six times in the Bamboo Annals.
The Arrival of Yin () was illegally excavated in the 1970s before eventually being transcribed and released in volume 1 of the Tsinghua Bamboo Slips cache. It details his return from an excursion to Xia.
<blockquote> æÂÂå°¹èªå¤Âå¾Â亳ï¼Âé¯è³å¨湯ãÂÂ湯æ°ï¼ÂãÂÂæ ¼ï¼Âæ±Âå ¶æÂÂÃ¥ÂÂå¿Âï¼ÂãÂÂå°¹æ°ï¼ÂãÂÂÃ¥ÂÂï¼ÂæÂÂä¾Âè¶Âä»Âæ¾¥ãÂÂä½Âç¾Âå ¶æÂÂå¤Âç¾ä¸ÂÃ¥ÂÂ好ï¼Âå ¶æÂÂÃ¥ÂÂå¥å¿Âå ¶åªï¼Â寵äºÂçÂÂï¼Âå¼ÂèÂÂå ¶æÂÂç¾ãÂÂæ°ÂçÂÂæ°ï¼ÂãÂÂä½ÂÃ¥ÂÂæ±ÂÃ¥ÂÂ亡ãÂÂãÂÂæÂÂç½èÂÂ極ï¼Âæ´åÂÂï¼Â亡堸ãÂÂå¤ÂæÂÂ祥ï¼Âå¨西å¨æ±ï¼Âè¦Âç« æ¼天ãÂÂå ¶æÂÂæ°ÂçÂÂæ°ï¼ÂãÂÂæÂÂæÂÂéÂÂç¦ÂãÂÂãÂÂå¸æ°ï¼ÂãÂÂæ·ä»Âæ±祥ä¸Âç« ï¼ÂãÂÂä»Âå ¶å¦Âå°ï¼ÂãÂÂ湯æ°ï¼ÂãÂÂæ±ÂÃ¥ÂÂæÂÂå¤Âé±ï¼ÂçÂÂèÂ¥æÂÂï¼ÂãÂÂå°¹æ°ï¼ÂãÂÂèÂ¥æÂÂãÂÂãÂÂ湯çÂÂèªÂÃ¥ÂÂå°¹ï¼Âè²ä¹ÂæÂÂ大ç¸ÂãÂÂ湯å¾Âå¾Âå¼ÂéÂÂãÂÂæ¯度ï¼Âæ¯德ä¸ÂÃ¥ÂÂãÂÂèª西翦西éÂÂï¼Âæ¡堶æÂÂå¤ÂãÂÂå¤ÂæÂÂæ°Âï¼Âå ¥æ¼水ï¼Âæ°æ°ãÂÂå¸Âæ°ï¼ÂãÂÂä¸Âå¿éºãÂÂãÂÂ<br> <br> When Yi Yin went from Xia to Bo, he quickly arrived at the court of Tang. Tang said: "Come! You must have good news to report!" Yi Yin said: "Milord! I have been travelling for ten days now. I may hazard that the people of Xia have inauspicious interests. The will of their ruler is lost; he will take two jade objects and give nary a thought to his people's coming demise. The people all say: "I will perish along with you." The calamities and cruelties are extreme; there is violence and unrest; it is essentially lawless. In Xia, there are auspicious signs, in the west and in the east, which manifest brightly in the sky. Their people all say: "We are hastening disaster." All will say: "Why are the eastern signs not manifesting now?" What is to be made of this?"<br> <br> Tang said: "You have told me the concealed [truths] of Xia. Is it indeed like this?" Yi Yin said: "Verily so."<br> <br> Tang swore an oath with Yi Yin. Thereupon they performed a great sacrifice . Tang then went on a campaign against those who did not submit. Yi Yin (Yi Zhi æ¯) made plans; Yi Yin's virtue was without error. From the west, he attacked from the west and subdued the Xia. Xia mustered its people and entered the water, declaring battle. Di said: "Do not leave a single one [alive]."<br> </blockquote>
The Announcement of Yin () was illegally excavated before being handed into the Tsinghua Bamboo Slips collection. It was then deciphered and released in Volume 1 in 2012. It follows the same writing style as the Arrival of Yin. It is similar in content, but distinctly different in prose, from Both Possessed Pure Virtue () seen in the received Book of Documents.
<blockquote> æÂÂå°¹æ¢åÂÂ湯ï¼Âå¸æÂÂä¸Âå¾·ãÂÂ尹念天ä¹ÂæÂÂ西éÂÂå¤Âï¼Âæ°ï¼ÂãÂÂå¤ÂèªçµÂå ¶æÂÂæ°Âï¼Â亦å¯åÂ¥ç¾ï¼ÂéÂÂæ°Âç¡èÂÂå®ÂéÂÂãÂÂæÂÂ翦滠å¤Âï¼Âä»ÂÃ¥ÂÂæ·ä¸Âç£ï¼ÂãÂÂå·åÂÂ湯æ°ï¼ÂãÂÂæÂÂå ÂÃ¥ÂÂæÂÂÃ¥ÂÂãÂÂä»Âå¯æ°Âé é¦ãÂÂæ¸å¿ÂãÂÂãÂÂ湯æ°ï¼ÂãÂÂæ¼ä¹Âï¼Âå¾ä½Âä½Âæ¼æ°Âï¼Â俾æÂÂç¾å¿éÂÂæÂÂè¨Âï¼ÂãÂÂæ¯æ°ï¼ÂãÂÂÃ¥ÂÂå ¶è³Âä¹Âï¼Âå ¶æÂÂå¤Âä¹ÂéÂÂçÂÂç°éÂÂï¼ÂèÂÂä¹ÂÃ¥ÂÂè¨ÂãÂÂãÂÂä¹Âè´ç¾äºÂ亳ä¸ÂéÂÂãÂÂ<br> <br> When Yi Yin had joined with Tang, they both possessed pure virtue. Yi Yin, reflecting on Heaven's destruction of the Western City of Xia, said: "Xia cut itself off from its people, and also from its masses. Without the people, there is no one to guard the city. Their sovereign created resentment amongst the people, and the people returned with divided hearts. We have cut down and destroyed the Xia. Now, milord, why not learn from this?" Seizing the moment to instruct Tang, he said: "We have been able to unite our allies. But now the people are distant from their state and their hearts are set on returning home."<br> <br> Tang said: "Alas! What should I do for these people, so that my own will not oppose my words?"<br> <br> Yi Yin (Zhi) replied: "Milord...you should reward them. Grant them the bronze, jade, fields, and return their towns and homes, and bestow upon them nice platitudes."<br> <br> Thereupon, he assembled the people in the central city of Bo. </blockquote>
The Nine Rulers shows a conversation between Yi Yin and Tang of Shang. It was excavated from Mawangdui, and the documented text was found written on the reverse of one of two versions of Laozi.
The following is a list of works purported to have been made by Yi Yin or otherwise spoken by him and written down by a scribe. Texts that attribute them to him are in brackets.