The World of Marcus Aurelius
The Meditations almost never mentions current events directly. The Marcomannic Wars go unnamed, as do the plague and the revolt that briefly declared someone else emperor. The book was written in the middle of all of it, mostly in military camps rather than in Rome.
Timeline of the Reign
Born in Rome, named Marcus Annius Verus.
Adopted by Antoninus Pius at the direction of the dying emperor Hadrian, who also required Pius to adopt Lucius Verus.
Marries Faustina the Younger, Antoninus Pius’s daughter.
Antoninus Pius dies. Marcus becomes emperor and immediately elevates his adoptive brother Lucius Verus to co-emperor — the first time the empire had two co-equal Augusti ruling jointly.
War against Parthia in the East, nominally led by Verus.
Troops returning from the Parthian campaign bring back a devastating plague — probably smallpox or measles, though the evidence doesn’t allow certainty — that spreads through the empire for years and weakens Rome’s capacity to fight on other fronts.
The Marcomannic Wars begin: Germanic tribes, chiefly the Marcomanni and Quadi, breach the Danube frontier.
Lucius Verus dies. Marcus becomes sole emperor and spends most of the next decade commanding from the Danube frontier rather than Rome.
Avidius Cassius, a general in the East, declares himself emperor after a false rumor that Marcus had died. The revolt collapses within months when Cassius is killed by his own officers; Marcus is reported to have shown clemency toward the conspirators.
Marcus elevates his son Commodus to co-emperor.
Dies while on campaign on the Danube frontier — ancient sources place it near Vindobona (modern Vienna) or Sirmium, and don’t agree which. Commodus succeeds him as sole emperor.
The Danube Frontier
Most of the Meditations was written during the Marcomannic Wars (166–180), a grinding, multi-front conflict along the Danube that occupied nearly all of Marcus’s last decade. The book itself confirms this in two of its own closing lines: Book I ends “written among the Quadi on the Gran” — the Quadi being one of the Germanic peoples Rome was fighting, and the Gran (the Granua, now the Hron, in modern Slovakia) a Danube tributary running through their territory. Book II ends “written at Carnuntum,” a legionary fortress on the Danube near modern Vienna that served as one of Marcus’s main headquarters during the war. Haines himself flags some uncertainty about exactly where these lines belong — his footnote on the first, and his Introduction on both, take them as more likely headings for the following book (II and III respectively) than sign-offs for the one they are printed after — but either way, both name real, identifiable places on the Danube frontier.
A third location, not appearing as a dateline in the text: Sirmium (modern Sremska Mitrovica, Serbia), on the Sava — a Danube tributary further south, in the province of Pannonia — which also functioned as a major military base during the same campaigns. Between Carnuntum, Sirmium, and the field camps beyond the river, Marcus spent much of the 170s closer to the empire’s northern frontier than to Rome.
See the Names in the Text for the family and teachers behind the names in Book I. Book II closes with the Carnuntum heading.