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|168 by topic|
|Ab urbe condita||921|
|Balinese saka calendar||89–90|
|Chinese calendar||丁未年 (Fire Goat)|
2864 or 2804
— to —
戊申年 (Earth Monkey)
2865 or 2805
|Coptic calendar||−116 – −115|
|- Vikram Samvat||224–225|
|- Shaka Samvat||89–90|
|- Kali Yuga||3268–3269|
|Iranian calendar||454 BP – 453 BP|
|Islamic calendar||468 BH – 467 BH|
|Minguo calendar||1744 before ROC|
|Seleucid era||479/480 AG|
|Thai solar calendar||710–711|
294 or −87 or −859
— to —
295 or −86 or −858
Year 168 (CLXVIII) was a leap year starting on Thursday (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 Paullus (or, less frequently, year 921 Ab urbe condita). The denomination 168 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.
- Emperor Marcus Aurelius and his adopted brother Lucius Verus leave Rome, and establish their headquarters at Aquileia.
- The Roman army crosses the Alps into Pannonia and subdue the Marcomanni at Carnuntum north of the Danube.
- Emperor Ling of Han succeeds Emperor Huan of Han as the emperor of the Han dynasty in China; first year of the Jianning era.
- Cao Ren, general of the Cao Wei state in the Three Kingdoms period (d. 223)
- Gu Yong, official of the Eastern Wu state in the Three Kingdoms period (d. 243)
- Dou Wu, Han dynasty official and regent
- Emperor Huan of Han, Han dynasty emperor (b. 132)
- Pope Anicetus