The earliest life of Christ ever compiled from the four Gospels, being the Diatessaron of Tatian (circ. A.D. 160) Literally translated from the Arabic version and containing the four Gospels woven into one story
Abū al-Faraj ʻAbd Allāh ibn al-Ṭayyib, 11th cent; Hill, James Hamlyn; Tatian, ca. 120-173