The second half of the third century AD saw Rome's military leadership embroiled in a deadly power struggle. Meanwhile, on the empire's frontiers, trouble was brewing...

Theme: Breakaway empires of the third century AD

• Murray Dahm, 'The Roman Empire in the third century AD - Crisis or consequence'.
• Aaron L. Beek, 'The Egyptian revolt of Domitius Domitianus - A brief empire of grain'.
• Peter Crawford, 'A British breakaway empire - Imperium Britanniarum'.
• Robert C. L. Holmes, 'The cavalry actions at Immae and Emesa - Horse races for empire'.
• Jona Lendering, 'The Franks, the Emperor Postumus, and the big nothing'.

Features:

• Ross Cowan, 'Military exploration in the first century AD - Roman adventurers'.
• Anneka Mihajlov, 'Commemorating a loyal Athenian cavalryman - The stele of Dexileos'.
• Murray Dahm, 'The reading habits of ancient generals - Sleepless nights'.
• Duncan B. Campbell, 'The Roman marching column - Order of march'.
• M.C. Bishop, 'The Mainz-Weisenau helmet - Exception to the rule'.
• Marc DeSantis, 'What if Macedon's greatest king had fought the Romans - Alexander in Italy, 317 BC'.