Julian II is born.
Julian II and Constantius Gallus are transferred to Cappadocia after the death of Eusebius.
Julian II converts from Christianity to paganism.
Julian II held at the court of Constantius II in Milan on suspicion of treason.
Julian II sent to study in Athens.
Julian II is inducted into the Eleusinian Mysteries.
November 6
Constantius II elevates Julian to Caesar.
Julian II leads a successful campaign to the Rhein.
Julian II engages in a coordinated action against the Alamanni that is directed by Constantius II. The operation fails when Julian is delayed by the Laeti and both parts are forced to withdraw.
Julian II takes charge of the province of Belgica Secunda.
Julian II achieves victories over the Franks on the Lower Rhein.
February
Constantius II orders half of Julian II’s troops to join him against Shapur II. The troops instead raise Julian II to Augustus.
February
The troops of Julian declare him Augustus in Paris, thus rebelling against Constantius II.
April
Julian II leads his troops against the Alamanni and capture their king.
November 3
Constantius II dies of fever in Cilicia, leaving Julian as the sole Augustus.
Emperor Julian, known as “Julian the Apostate” for his attempts to restore paganism, is initiated into the Eleusinian Mysteries and actively promotes them, opposing the spread of Christianity.
December 11
Julian II enters Constantinople as the sole Emperor.
Julian II allows Jews to rebuild their temple in Jerusalem, but fires break out that stop the project.
May
Julian II launches a campaign against Persia. Procopius takes part.
June 26
Death of Julian II due to a wound received at the Battle of Samarra. His soldiers choose Jovian as Emperor.