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Events

• Ma Jun
  Ma Jun
  Ma Jun , styled Deheng , was a Chinese mechanical engineer and government official during the Three Kingdoms era of China...
  
  , a Chinese mechanical engineer from Cao Wei
  Cao Wei
  Cao Wei was one of the empires that competed for control of China during the Three Kingdoms period. With the capital at Luòyáng, the empire was established by Cao Pi in 220, based upon the foundations that his father Cao Cao laid...
  
  , invents the South Pointing Chariot
  South Pointing Chariot
  The South Pointing Chariot is widely regarded as one of the most complex geared mechanisms of the ancient Chinese civilization, and was continually used throughout the medieval period as well. It was supposedly invented sometime around 2600 BC in China by the Yellow Emperor Huang Di, yet the first...
  
  , a path-finding directional compass
  Compass
  A compass is a navigational instrument for determining direction relative to the Earth's magnetic poles. It consists of a magnetized pointer free to align itself with Earth's magnetic field. The compass greatly improved the safety and efficiency of travel, especially ocean travel...
  
   vehicle that uses a differential gear, not magnetics.

Deaths

• Guo Huai
  Guo Huai
  Guo Huai was a Wei general during the Three Kingdoms era of China who served under Cao Cao. He later rose up through the ranks during Cao Pi's reign, eventually becoming a grand marshal serving under Sima Yi. He made many contributions to the Kingdom of Wei...
  
  , general of the Kingdom of Wei
• Sima Shi
  Sima Shi
  Sima Shi , courtesy name Ziyuan , was an official of Cao Wei during the Three Kingdoms era of China. He ultimately became the actual wielder of imperial power...
  
  , son of Sima Yi
  Sima Yi
  Sima Yi was a strategist, general, and politician of Cao Wei during the Three Kingdoms era of China. He is perhaps best known for defending Cao Wei from Zhuge Liang's Northern Expeditions...
  
   and general of Wei
  Cao Wei
  Cao Wei was one of the empires that competed for control of China during the Three Kingdoms period. With the capital at Luòyáng, the empire was established by Cao Pi in 220, based upon the foundations that his father Cao Cao laid...
  
  
• Wuqiu Jian, general of the Kingdom of Wei
• Zhang Yi
  Zhang Yi (Boqi)
  Zhang Yi was instrumental in pacifying the barbarian peoples who rebelled against Shu. He died during one of Jiang Wei's Northern campaigns while distracting the enemy from pursuing Jiang Wei...
  
  , general of Shu
  Shu Han
  Shu Han , sometimes known as the Kingdom of Shu was one of the Three Kingdoms competing for control of China after the fall of the Han Dynasty, based on areas around Sichuan which was then known as Shu. Some historians argue it is the last Han dynasty because Liu Bei is directly related to the Han...
  
  
• Zou Jing
  Zou Jing
  Zou Jing was a captain under Liu Yan in the midst of the Yellow Turban Rebellion in the Three Kingdoms period of Chinese history...