Marcus Aurelius spent all of his reign (161-80). fighting wars. One was against Rome main rival, the Parthian Empire of Persia. (161-66). The other was against Germanic peoples who were trying to invade the River Danube area of the Roman Empire in what historians call the Marcomannic War (166-180).

The Parthian empire was always a thorn in the side of the Roman empire.

The Parthian empire was always a thorn in the side of the Roman empire.

The Parthian empire was always a thorn in the side of the Roman empire.

The Parthian empire was always a thorn in the side of the Roman empire.

The Parthian empire was always a thorn in the side of the Roman empire.

The Parthian empire was always a thorn in the side of the Roman empire.

The Parthian empire was always a thorn in the side of the Roman empire.

The Parthian empire was always a thorn in the side of the Roman empire.

The Parthian empire was always a thorn in the side of the Roman empire.

Antony's Parthian War happened in -33.

Three empires immediately come to mind: the Roman empire, the Parthian/Persian empire and the Chinese empire.

Three empires immediately come to mind: the Roman empire, the Parthian/Persian empire and the Chinese empire.

Three empires immediately come to mind: the Roman empire, the Parthian/Persian empire and the Chinese empire.

Three empires immediately come to mind: the Roman empire, the Parthian/Persian empire and the Chinese empire.

Three empires immediately come to mind: the Roman empire, the Parthian/Persian empire and the Chinese empire.

Three empires immediately come to mind: the Roman empire, the Parthian/Persian empire and the Chinese empire.

Three empires immediately come to mind: the Roman empire, the Parthian/Persian empire and the Chinese empire.

Three empires immediately come to mind: the Roman empire, the Parthian/Persian empire and the Chinese empire.

Three empires immediately come to mind: the Roman empire, the Parthian/Persian empire and the Chinese empire.

161 = CLXI