231

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Heads of state

 Map with all linked sites: OSM | WikiMap

231
231 in other calendars
Ethiopian calendar	223/224
Buddhist calendar	774/775 (southern Buddhism); 773/774 (alternative calculation according to Buddha's Parinirvana )
Chinese calendar	48th (49th) cycle , year of the metal pig辛亥 ( at the beginning of the year metal dog 庚戌)
Greek calendar	2nd / 3rd Year of the 252nd Olympiad
Jewish calendar	3991/92 (September 14-15)
Roman calendar	from urbe condita CMLXXXIV (984)
Seleucid era	Babylon: 541/542 (New Year April); Syria: 542/543 (New Year October)
Spanish era	269
Vikram Sambat (Nepalese Calendar)	287/288 (turn of the year April)

Events

• Roman-Persian Wars : The Sassanid ruler Ardaschir I begins the battle with Rome to bring northern Mesopotamia under his rule.
• China , Three Kingdoms Period : Fourth Northern Expedition .

Born

• Cao Fang , Chinese Emperor († 274 )
• Sun Lin , Chinese regent († 258 )

Died

• Cao Zhen , Chinese general (* 185 )
• Philetus , Bishop of Antioch
• Zhang He , Chinese general (* 167 )