AD 84

Events

By place

Roman Empire

• Possible date of the Battle of Mons Graupius, in which Gnaeus Julius Agricola defeats the Caledonians.
• Emperor Domitian recalls Agricola back to Rome, where he is rewarded with a triumph and the governorship of the Roman province Africa, but he declines it.
• Pliny the Younger is sevir equitum Romanorum.
• The construction of the limes, a line of Roman fortifications from the Rhine to the Danube, is begun.
• Through his election as consul for ten years and censor for life, Domitian openly subordinates the republican aspect of the state to the monarchical.
• Domitian increases the troops' pay by one third, thus securing their loyalty.

  Asia

• Change from Jianchu to Yuanhe era of the Chinese Eastern Han Dynasty.

  Deaths

• Luke the Evangelist, Greek physician and martyr
• Titus Flavius Sabinus, Roman consul and married with Julia Flavia