spring of 715: The Arabs advance towards the southwestern shore of Asia Minor. Emperor Anastasios II sends his fleet against them with troops from the Opsikion theme on board
May 715: Rebellion of the troops of the Opsikion theme in Rhodes
1 June 715: The rebels proclaim local tax collector Theodosios Emperor in Adramyttion, sail towards Constantinople and lay a siege. Anastasios flees to Nicaea
November 715: The rebels conquer Constantinople and convince emperor Anastasios to surrender in Nicaea. Ascent of Theodosios on the throne