170

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title: "170" type: doc version: 1 created: 2026-02-28 author: "Wikipedia contributors" status: active scope: public tags: ["170"] topic_path: "general/170" source: "https://en.wikipedia.org/wiki/170" license: "CC BY-SA 4.0" wikipedia_page_id: 0 wikipedia_revision_id: 0

::callout[type=note] 170 ::

Year 170 (CLXX) was a common year starting on Sunday of the Julian calendar. At the time, it was known as the Year of the Consulship of Clarus and Cornelius (or, less frequently, '*year 923 *Ab urbe condita'''''). The denomination 170 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.

Events

By place

Roman Empire

The Suebian tribes of the Marcomanni cross the Danube and invade Northern Italy. The Roman army (20,000 men) is destroyed near Carnuntum in Pannonia.
The Marcomanni plunder Opitergium (modern Oderzo) and besiege Aquileia. This is the first time hostile forces have entered Italy since 101 BC.
Emperor Marcus Aurelius writes in Sirmium (Pannonia) his first of 12 books of the Meditations in Koine Greek.
The Costoboci cross the Danube (Dacia) and ravage Thrace in the Balkan Peninsula. They reach Eleusina, near Athens, and destroy the temple of the Eleusinian Mysteries.
Marcus Aurelius orders humane treatment for Christians and slaves throughout the Roman Empire.
An Equestrian Statue of Marcus Aurelius is erected in Rome.
The Porta Nigra is built in Augusta Treverorum (modern Trier). (approximate date)

Births

Guo Jia, Chinese politician and adviser (d. 207)
Herodian, Roman historian and writer (d. 240)
Julia Domna, Roman empress consort (d. 217)
Pang De, Chinese military general (d. 219)
Philostratus, Greek sophist (approximate date)
Vibia Aurelia Sabina, Marcus Aurelius' last surviving child (d. 217)

Deaths

Alexander of Abonoteichus, Greek mystic (b. AD 105)
An Shigao, Chinese Buddhist missionary (b. AD 148)
Apuleius, Numidian philosopher and writer (b. AD 124)
Demonax, Greek philosopher and writer (b. c. AD 70)
Junius Rusticus, Roman teacher and politician (b. AD 100)
Marcus Cornelius Fronto, Roman grammarian (b. AD 100)
Ptolemy, Greek mathematician and astronomer (b. AD 100)

References

Oliver, James H.. (1970). "Marcus Aurelius: Aspects of Civic and Cultural Policy in the East". Hesperia Supplements.
Gwatkin, William E.. (1933). "Roman Trier". The Classical Journal.
Brunt, P. A.. (1974). "Marcus Aurelius in His Meditations". The Journal of Roman Studies.

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