180

• The Quadi are chased westwards, deeper into Germania. The Praetorian prefect, Tarutenius Paternus, achieves a decisive victory against the Germanic tribes.
• March 17 – Emperor Marcus Aurelius dies after a week's illness at his camp in Vindobona (modern Vienna). He is succeeded by his son Commodus (age 18).
• The Era of the Five Good Emperors ends.
• Rome creates a 4-mile wide buffer zone by the Danube.
• Work begins in Rome on the building of the Column of Marcus Aurelius.
• 180–395 – Late Empire in Rome.
• Northern British from beyond Hadrian's Wall invade the North of modern-day England, causing Emperor Commodus to allow swathes of Northern cities to establish city walls.
• Cassius Dio arrives in Rome and becomes a Senator{{cite web | url=https://www.britannica.com/biography/Dio-Cassius | access-date=February 24, 2024 | title=Cassius Dio | date=January 1, 2024 | series=Encyclopædia Britannica}}

• The Goths reach the banks of the Black Sea.

• Lake Taupō in New Zealand erupts, forming ash clouds as far as China and Europe.

• In his Methodus Medendo, Greek physician Galen describes the connection between paralysis and the severing of the spinal cord.
• Galen's popular work on hygiene is published.

• July 17 – Twelve Christian inhabitants of Scillium in Numidia are executed in Carthage (also in North Africa) (known as the Scillitan Martyrs) – they had refused to swear an oath to the Emperor.
• Commodus creates an official cult of the Zoroastrian god Mithra.

• Ardashir I, founder of the Sasanian Empire (d. 242)
• Johanan bar Nappaha, Jewish rabbi (d. 279)
• Julia Soaemias, mother of Elagabalus (d. 222)
• Sima Fu, Chinese prince and statesman (d. 272)

• March 17 – Marcus Aurelius, Roman emperor (b. 121)
• Aulus Gellius, Roman author and grammarian (b. 125 AD)
• Gaius, Roman jurist and writer (approximate date)
• Hegesippus, Christian chronicler and writer (b. 110){{cite book |last1=Thompson |first1=Bruce D. |title=Echoes of Contempt: A History of Judeophobia and the Christian Church |date=2018 |publisher=Wipf and Stock Publishers |isbn=9781532655111 |page=25 |url=https://books.google.com/books?id=UJ2DDwAAQBAJ&pg=PA25|language=en}}
• Lucian of Samosata, Syrian rhetorician (b. 125 AD)
• Melito of Sardis, bishop of Sardis (approximate date)
• Pinytus, bishop of Knossos (approximate date)

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