of the regency council had died, leaving Sima Yi as the primary leader of Cao Wei. Before this time, Shu Han launch attacks on the Wei borders and in 229, Zhuge Liang occupied Wudu Commandery. He was, however, unable to make any further gains during his battles against Sima Yi and died in 234. In 238 Sima Yi annexed the Gongsun state in the northwest. This was followed by a campaign into Goguryeo in 244 and 245. Cao Rui died in 239 and was succeeded by his adopted son Cao Fang, who fell under the regency of Cao Shuang and Sima Yi. In 249 Sima Yi killed Cao Shuang and seized power in Wei. He died two years later and was succeeded by his son Sima Shi. Cao Fang tried to retake power for himself in 254 but failed and was replaced by his cousin, Cao Mao. Sima Shi died in 255 and was succeeded by his brother Sima Zhao. In 260 Cao Mao, like his cousin, attempted to seize control of the state, but failed and died in the process. In 264 Sima Zhao conquered Shu Han, eliminating one of the Three Kingdoms. He died the following year and was succeeded by his son Sima Yan. On 8 February 266, Sima Yan deposed the last emperor of Wei, Cao Huan, and proclaimed himself Emperor of the Jin dynasty. Sima Yan went on to annex the southern state of Eastern Wu in 280, putting an end to the period of the Three Kingdoms. Shu Han Shu Han was founded by Liu Bei in 221 and was conquered by Cao Wei in 263. Liu Bei Liu Bei was a very distant descendant of Emperor Jing of Han. His father Liu Hong died when he was still very young and his mother made a living by selling straw sandals. In 175 Liu Bei was sent to study at the Taixue of Luoyang, where he became friends with Gongsun Zan. Liu Bei had very little interest in books but had a knack for fighting and inspired many young men to join him. With the support of two merchants, Zhang Shiping and Su Shuang, Liu Bei was able to create a sizable following including his long time friends Guan Yu and Zhang Fei. When the Yellow Turban Rebellion broke out in 184 Liu Bei led his troops against them under various commanders. He did