860s in the Abbasid Caliphate

Iranian dynasty ruling Sistan, Khorasan and Central Iran (861–1003)

battle fought in 863 between the Byzantine Empire and an invading Arab army in Paphlagonia

period 861–870 in the history of the Abbasid Caliphate, which was marked by extreme internal instability and the violent succession of four caliphs, who became puppets in the hands of powerful rival military groups

armed conflict between the rival caliphs al-Musta'in and al-Mu'tazz for control over the Abbasid Caliphate; al-Mu'tazz won, and Al-Musta'in was executed shortly afterward

sacred tree in Zoroastrian legend

war in Mesopotamia

battle between Abbasid Caliphate and Byzantines in c. 862