* Cao Ren, cousin of the warlord Cao Cao ( d. 223 )

* Cao Chun, younger brother of Cao Ren ( d. 210 )

* Cao Ren, general of Wei ( b. 168 )

In 219, Guan Yu advanced north, attacking Fancheng, scoring a major victory over Cao Ren.

Guan Yu, who is in charge of Jing Province, leads his troops to attack Cao Ren in the Battle of Fancheng.

After almost a year of fighting, Cao Cao could no longer afford continuous loss of materiel and labor in the siege, and ordered Cao Ren to withdraw from Jiangling fortress.

In 219, Guan Yu attacked the nearby enemy city of Fancheng ( present-day Fancheng District, Xiangyang, Hubei ), which was guarded by Cao Ren, and besieged it.

As he was threatened by rival Yuan Shao in the north and could not divide his attention, Cao Cao attempted to further reinforce the alliance with Sun Ce by marrying the daughter of his relative Cao Ren to Sun Ce's youngest brother Sun Kuang.

Cao Cao became concerned about such developments in his rear, but his cousin Cao Ren observed that Liu Bei could not have too much control over his new men given by Yuan Shao.

So Cao Cao sent Cao Ren to deal with the rebellion.

Cao Ren succeeded, killing the rebel leader Liu Pi and routing Liu Bei.

Cao Ren again responded to the threat by defeating Han Meng at Mount Jiluo ( 雞洛山 ; 50 li northeast of present-day Xinmi, Henan ).

In 219, Cao Cao's cousin and leading general Cao Ren was besieged at the fortress at Fancheng ( 樊城 ; present-day Fancheng District, Hubei ) by Guan Yu.

Cao Pi declined, in a fateful choice that most historians believe doomed his empire to ruling only the northern and central China — and this chance would not come again.

In 224 and 225, Cao Pi again made attacks on Wu, but each time the Wu forces were able to repel Wei's with fair ease — so easily that Cao Pi made the comment, " Heaven created the Yangtze to divide the north and south.

Liu finds a new base in Runan after leaving Yuan but is defeated by Cao Cao's forces once again.

Guan Yu made another major contribution to Cao Cao again by slaying Wen Chou.

Cao declined this suggestion, in a fateful choice that most historians believe doomed his empire to ruling only the northern and central China ; Such an opportunity would not come again.

Cao Cao narrowly escaped again under the cover of his bodyguard Xu Chu, a man of herculean strength.

After Cao Pi succeeded Cao Cao in 220, Zhang Liao was further promoted to General of the Vanguard ( 前將軍 ) and again deployed to Hefei to defend against Sun Quan.

Liu Bei had to flee to Cao Cao again.

In 257, when Cao Wei was dealing with the rebellion of Zhuge Dan ( who had anticipated an usurpation by Sima Shi's brother and successor Sima Zhao and wanted to resist it ), Jiang Wei again attacked, this time advancing all the way to Mangshui ( 芒水 ; in present-day Xi ' an, Shaanxi ), but could not induce Wei's forces, commanded by Deng Ai and Sima Wang, to engage him in battle.

Later, Cao Cao invaded Ruxu again, but Lü Meng defended their positions as he did the last time in Ruxu and again Cao Cao was unable to take Ruxu.

Sun Quan had plans to invade Cao Cao's Xu Province instead, but Lü Meng dissuaded him, saying that although it would be easy to take Xu Province, it would be hard to defend Xu Province from being retaken by Cao Cao again.

The French responded by dismantling their small posts along the road and concentrating area forces in the fortified positions at Dong Khé and Cao Bang.

Cao Cao responded " Often have I reflected upon this course and struggled against my fate, but what can I do?

The Wei Zhi also records that in 238 CE, Queen Himiko sent an envoy to the court of Wei emperor Cao Rui, who responded favorably.

Some years before the battle, Yuan Shao's advisors Ju Shou and Tian Feng had foreseen that Cao Cao would become a threat to their lord in his ambition to dominate China.

From such a perspective, Yuan Shao, faced with the ever-growing threat of his former ally Cao Cao, concentrated his force in a direct approach to Cao Cao's headquarters in hope that such a strike would overwhelm his enemy.

However, Cao Rui probably still considered him a threat to the throne and declined all the offers.

Following the death of the Wei emperor Cao Pi in 226, Sun Quan strongly promoted his kingdom to focus on agriculture because the threat from Wei was lifted.

This was a veiled threat aimed at the general Cao Qin ( d. 1461 ), who had become embroiled in a controversy when he had one of his retainers kill a man whom Ming authorities were attempting to interrogate ( to find out about Cao's illegal foreign business transactions ).

Cao Cao saw this as a significant threat, and, together with other warlords, formed a new coalition with Yuan Shao as their leader.

Cao Cao saw this as a significant threat, and, together with other warlords, formed a new coalition with Yuan Shao as their leader.

Cao Shuang sensed that Sima Yi no longer posed a threat to him and drew his attention away from Sima.

In 208, just after Sun Quan defeated Huang Zu at the Battle of Xiakou, he faced yet another bigger threat, Cao Cao, from the north.

For example, in one of the Four Great Classical Novels of China, The Dream of the Red Chamber ( believed to be a semi-autobiographical account of author Cao Xueqin's own family life ), three generations of the Jia family are supported by one favorite concubine of the Emperor.

* 1965 – Civilian Prime Minister of South Vietnam Phan Huy Quat resigned after being unable to work with a junta led by Nguyen Cao Ky.

Another example is Cao Dai, a Vietnamese faith that duplicates the Catholic hierarchy, which is declared legitimate by religious authorities in Cao Dai due to the fact that, according to them, God created both Catholicism and Cao Dai.

The Tianshi school was officially recognized by ruler Cao Cao in 215, legitimizing Cao Cao's rise to power in return.

* 265: The Jin Dynasty is founded when the overthow of the Cao Wei Dynasty by Sima Yan.

* Yuan Shao, major warlord who ruled Northern China until defeated by Cao Cao ( d. 202 )

* Zhang Miao ( defeated by Cao Cao )

* Lü Bu, Chinese warlord ( killed by Cao Cao )

* August 7 – The Ming Dynasty Chinese military general Cao Qin stages a coup against the Tianshun Emperor ; after setting fire to the eastern and western gates of the Imperial City ( Beijing ) ( which are doused by pouring rains during the day-long uprising ), Cao Qin finds himself hemmed in on all sides by imperial forces, loses three of his own brothers in the fight, and instead of facing execution he flees to his home in the city and commits suicide by jumping down a well located within his walled compound.

It began when the ruler of Wei, Cao Cao, was defeated by Liu Bei and Sun Quan at the Battle of Red Cliffs.

* Dong Cheng ( executed by Cao Cao )