Crisis of the Third Century Timeline

The Crisis of the Third Century in Rome; period of the Barracks Emperors.

Postumus founds the "breakaway" Gallic Empire, seceding from Roman Empire.

Zenobia breaks away from Roman Empire to found Palmyrene Empire.

The Battle of Immae between the Roman forces under Aurelian and the Palmyrenes under Zenobia in which Rome triumphed.

Aurelian defeats Zenobia at the Battle of Emesa; Palmyrene Empire falls to Rome.

Aurelian defeats the forces of Tetricus I at the Battle of Chalons; Gallic Empire falls to Rome.

Crisis of the Third Century resolved during the reign of Diocletian.