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|191 by topic|
|Ab urbe condita||944|
|Chinese calendar||庚午年 (Metal Horse)
2887 or 2827
— to —
辛未年 (Metal Goat)
2888 or 2828
|Coptic calendar||−93 – −92|
|- Vikram Samvat||247–248|
|- Shaka Samvat||112–113|
|- Kali Yuga||3291–3292|
|Iranian calendar||431 BP – 430 BP|
|Islamic calendar||444 BH – 443 BH|
|Minguo calendar||1721 before ROC
|Seleucid era||502/503 AG|
|Thai solar calendar||733–734|
|Wikimedia Commons has media related to 191.|
Year 191 (CXCI) was a common year starting on Friday (link will display the full calendar) of the Julian calendar. At the time, it was known as the Year of the Consulship of Apronianus and Bradua (or, less frequently, year 944 Ab urbe condita). The denomination 191 for this year has been used since the early medieval period, when the Anno Domini calendar era became the prevalent method in Europe for naming years.
- King Vologases IV of Parthia of Parthia dies after a 44-year reign and is succeeded by his son Vologases V.
- A coalition of Chinese warlords launches a punitive campaign against Chancellor Dong Zhuo, who had occupied the capital at Luoyang. In response, Dong Zhuo forces Emperor Xian to move the capital to Chang'an. Dong Zhuo's troops burn Luoyang and loot the tombs of the late Han emperors for treasures.
- Yuan Shao battles Gongsun Zan at the Battle of Jieqiao in northern China.
- c. 191–192 – Commodus as Hercules, from Esquiline Hill, Rome, is made. It is now kept at Palazzo dei Conservatori, Rome.
- Gongsun Yue, younger half-brother of Gongsun Zan
- Han Fu (suicide)
- Hua Xiong, general under Dong Zhuo
- Qiao Mao, prefect of Dongjun of the Han Dynasty
- Sun Jian, father of Sun Ce, Sun Quan, and Lady Sun (b. circa 155)
- Vologases IV, king of Parthia