Antoninus Pius, Roman emperor (died 161)

AD 86 (LXXXVI) was a common year starting on Sunday of the Julian calendar. At the time, it was known as the Year of the Consulship of Augustus and Petronianus. The denomination AD 86 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.

Titus Aelius Hadrianus Antoninus Pius was Roman emperor from AD 138 to 161. He was the fourth of the Five Good Emperors from the Nerva–Antonine dynasty.

September 19 is the 262nd day of the year in the Gregorian calendar; 103 days remain until the end of the year.