1) Early Muslim conquest 
Hagarenes (Greek Ἀγαρηνοί Agarenoi, ܗܓܪܝܐ Hagráyé or ܡܗܓܪܝܐ Mhaggráyé), is a term that widely used by early Syriac, Greek, Coptic and Armenian sources to describe the early Arab conquerors of Mesopotamia, Syria and Egypt. The name was used in Judeo-Christian literature and Byzantine chronicles for `Hanif` Arabs, and later.....