Year 164 (CLXIV) was a leap year starting on Saturday (link will display the full calendar) of the Julian calendar. At the time, it was known as the Year of the Consulship of Macrinus and Celsus (or, less frequently, year 917 Ab urbe condita). The denomination 164 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.


  • Syrian Governor Avidius Cassius, one of Lucius Verus' generals, crosses the Euphrates and invades Parthian territory.
  • Ctesiphon is captured by the Romans, but returned to the Parthians after the end of the war.
  • The Antonine Wall in Scotland is abandoned by the Romans.
  • A law is passed protecting property brought into a marriage by the wife.
  • Marcus Aurelius gives his daughter Lucilla in marriage to his co-emperor Lucius Verus.
  • Seleucia on the Tigris is destroyed.


  • Ge Xuan, Taoist (d. 244)
  • Yu Fan, official serving under Han dynasty warlord Sun Quan (d. 233)