The apocryphal gospels

The most famous non-canonical gospel stories come from the 2nd and 3rd centuries, such as the Gospel of Thomas, the Gospel of Peter, the Gospel of Judas, the Gospel of Mary, the Gospel of Barnabas, the Infancy Gospel of Thomas, the Gospel of Truth, the Odes of Solomon, and the Gospel of Philip.  Finally, there are a series of gospel harmonies, where the 4 canonical gospels were selectively recast as a single narrative to present a consistent text.  The Syrian Tatian (120-180 CE) compiled a harmonization called the Diatessaron around 175 CE.