Editing 617 (section)

==== Byzantine Empire ====
* [[Byzantine–Sassanid War of 602–628#Anatolia|Byzantine-Sassanid War]]: The [[Sassanid Empire|Persian]] army under [[Shahin Vahmanzadegan]] conquers [[Chalcedon]] in [[Anatolia]], and reaches the [[Bosporus]], threatening [[Constantinople]]. Emperor [[Heraclius]] begins peace negotiations, promising an annual [[tribute]] of 1,000 talents of [[gold]] and [[silver]].{{sfn|Greatrex|Lieu|2002|p=198}} Shahin withdraws with his army to [[Syria]], to focus on the invasion of [[Diocese of Egypt (Late Antiquity)|Egypt]].{{sfn|Foss|1975|p=724}}
* The [[Avars (Carpathians)|Avars]] send envoys to Constantinople for a meeting with Heraclius. He is warned about an [[ambush]], and flees for safety behind the city walls in time. Angry at the failure to capture the [[Byzantine Empire|Byzantine]] emperor, the Avars plunder [[Thrace]] and return to the [[Danube|Danube River]], carrying off 270,000 people.{{sfn|Fine|1991|p=42}}