The figure-eight knot is also the hyperbolic knot whose complement has the smallest possible volume, 2. 02988 ... according to the work of Chun Cao and Robert Meyerhoff.

# If Guan Yu discovers the whereabouts of Liu Bei ( whose fate was unknown after the battle ) one day, he will leave Cao Cao and reunite with his sworn brother.

Back in camp, Cao Cao praised Xu Chu as a true mighty warrior, whose fighting ability befitted his nickname of " Tiger Craze ".

Caodaiists often use the term Đức Cao Đài ( Venerable Cao Đài ) as the abbreviated name for God, the creator of the universe, whose full title is Cao Đài Tiên Ông Đại Bồ Tát Ma-ha-tát ( translation: Cao Đài Ancient Sage Great Bodhisattva Mahasattva ).

By 254, state power was in the control of the Sima clan, whose patriarch Sima Yi had seized power from Cao Fang's regent Cao Shuang in 249.

As suggested by his advisor Cheng Yu, Cao then summoned Guan Yu, whose service he had for the time being.

In the subsequent years, warlords quickly rose in each region ; Xun Yu first served Yuan Shao, whose power base was in Ji Province, but later left him and went to serve Cao Cao in 191.

Xun Yu, whose ideals were for Cao Cao to continue being the protector of the Han Dynasty, opposed Dong Zhao's proposal.

References to him could be found in Chen Shou's Records of Three Kingdoms, in the biographies of Yuan Shao, Cao Cao, Xun Yu, and Xun You, from where it could be gathered that Wen was a fierce warrior whose prowess in battle matched that of his counterpart, Yan Liang.

Ma Chao intended to nab Cao Cao but suspected that the man beside him was Xu Chu, whose name he had heard for long.

One of the first whose background can be verified is Yuan Huan ( 袁渙 ), who served Cao Cao and later his son Cao Pi in the civil bureaucracy.

III Corps tactical zone commander Vietnamese general Do Cao Tri was the most visible ARVN leader.

Thieu relieved the operational commander, head of I Corps tactical zone commander Hoang Xuan Lam with the most respected combat commander in the ARVN, Do Cao Tri.

There are two main chains: Quang Nam Châu 1, 507 m and Cao Xiêm 1, 330 m. The western zone features smooth and curved mountains called Ðông Triều with Yên Tu Mount 1, 068 m in Uông Bí region and Am Váp Mount 1, 094 m in Hoành Bồ District.

* Sima Yi takes complete control of Cao Wei by executing his political rival Cao Shuang and his clan, marking the start of Sima family rule, which eventually gave rise to the Jin Dynasty.

However, many Chinese historians extend the starting point of this period back to various years during the collapse of the Han dynasty, such as to the Yellow Turban Rebellion in 184 ; the year after the beginning of the rebellion, 185 ; Dong Zhuo deposing and murdering Emperor Shao of Han and establishing Emperor Xian of Han in 189 ; Dong Zhuo sacking Luoyang and moving the capital to Chang ' an in 190 ; or Cao Cao placing the emperor under his control in Xuchang in 196.

This was an extremely important move for Cao Cao following the suggestion from his primary advisor, Xun Yu, commenting that by supporting the authentic emperor, Cao Cao would have the formal legal authority to control the other warlords and force them to comply in order to restore the Han Dynasty.

Yuan Shao challenged Cao Cao for control over the emperor.

At various times in this time period, Han Dynasty, Cao Wei Dynasty, Western Jin Dynasty, Tang Dynasty and some other minor kingdoms of China established control in parts of Manchuria and in some cases tributary relations with peoples in the area.

* Three Kingdoms: The northern part of China is under the control of Cao Cao, Imperial Chancellor and ruler of the Kingdom of Wei.

Soon after, Liu Biao died while Cao Cao was preparing a major campaign to subjugate both Liu Biao and Sun Quan under his control, precipitating a major confrontation.

At the end of the Han Dynasty, most of Hebei came under the control of warlords Gongsun Zan in the north and Yuan Shao further south ; Yuan Shao emerged victorious of the two, but he was soon defeated by rival Cao Cao ( based further south, in modern-day Henan ) in the Battle of Guandu in 200.

Đình was put in charge of the fake coup and was allowed the additional control of the 7th Division based in Mỹ Tho, south of the capital, which was previously assigned to Diệm loyalist General Huỳnh Văn Cao, who was in charge of the IV Corps in the Mekong Delta.

Liu loses the province when Lü Bu seizes control of it with the help of a defector and he joins Cao Cao in defeating Lü at the Battle of Xiapi.

Sun Quan and Liu Bei begin vying for control of Jing Province after their victory and Liu seizes the province from Cao Cao after following Zhuge Liang's strategy.

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

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

By traditional Chinese historiography, no Three Kingdoms era officially existed, since in a legal sense the Mandate of Heaven was passed legitimately from the Han Emperor Xian to Cao Wei, and then on to the Jìn Dynasty.

Cao Cao, directly to Yuan Shao's south, was engaged in a struggle against Yuan Shu and Liu Biao, who occupied respectively the Huai River basin and middle Yangtze regions.

By 196, when he was received by Cao Cao, most of the smaller contenders for power had either been absorbed by larger ones or destroyed.

In 197, Yuan Shu, who was at odds with Cao Cao, Yuan Shao, and Liu Bei, felt assured of victory with his subordinate's conquests, and thus declared himself emperor of the Cheng Dynasty.

Lü Bu's men deserted him, Yuan Shu's forces never arrived as reinforcements, and he was bound by his own subordinates Song Xian and Wei Xu and executed on Cao Cao's order.

Xian was persuaded by Cao Cao ( 155 – 220 CE ), then Governor of Yan Province in modern western Shandong and eastern Henan, to move the capital to Xuchang in 196 CE.

Yuan's power was greatly diminished after Cao defeated him at the Battle of Guandu in 200 CE.

After Cao's defeat at the naval Battle of Red Cliffs in 208 CE, China was divided into three spheres of influence, with Cao Cao dominating the north, Sun Quan ( 182 – 252 CE ) dominating the south, and Liu Bei ( 161 – 223 CE ) dominating the west.

* Zhuge Liang launches the fourth of his Northern Expeditions against the state of Cao Wei.

After Cao Cao's death in 220, Cao Pi forced Emperor Xian to yield the throne to him, ending the Han Dynasty and establishing the state of Cao Wei.

Sun Quan did not immediately submit to Wei or declare independence after Cao Pi's enthronement, but took a wait-and-see attitude ; by contrast, in early 221, Liu Bei declared himself emperor, establishing the state of Shu Han.

Later that year, when Cao Pi demanded that Sun Quan send his crown prince Sun Deng to the Wei capital Luoyang as a hostage ( to guarantee his loyalty ), Sun Quan refused and declared independence ( by changing era name ), thus establishing Eastern Wu as an independent state.

In 1965, stability came to South Vietnam when he became the figurehead head of state, while Air Marshall Nguyễn Cao Kỳ became prime minister, leading a junta that ended the cycle of coups with two years of continuity, although the men were rivals.

Through his conquests, Cao unites the Central Plains and northern China under his rule, and the lands he controlled would serve as the foundation for the state of Cao Wei in the future.

While Cao Cao subtly reveals his intention to usurp state power, Liu Bei is officially recognised by Emperor Xian as the Imperial Uncle and seen as a saviour to help the emperor deal with Cao Cao.

The influence of the Caos weakens after the death of Cao Rui and the state power of Cao Wei eventually falls into the hands of the Sima clan, headed by Sima Yi's sons Sima Shi and Sima Zhao.

3rd century ) was a mathematician of the state of Cao Wei during the Three Kingdoms period of Chinese history.

After Cao Cao's death in 220, his successor Cao Pi forced Emperor Xian of Han to abdicate and subsequently assumed the throne as the first emperor of the state of Cao Wei.

As one of the central figures of the Three Kingdoms period, he laid the foundations for what was to become the state of Cao Wei and was posthumously titled Emperor Wu of Wei.

In Ji ' nan, Cao Cao aggressively enforced the ban on unorthodox cults, destroyed shrines, and supported state Confucianism.