Political map of Europe & the Mediterranean on 23 Apr 254 (The Crisis of the Third Century: Aftermath of Barbalissos), showing the following events: Battle of Interamna Nahars; Principate of Valerian; Battle of the Sanguinarian Bridge; Shapur I’s Sack of Antioch; Co-principate of Gallienus; Marcomannic raid on Ravenna; Gallienus’ German War.
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