Tatian

Tatian of Adiabene, or Tatian the Syrian or Tatian the Assyrian, (; ; ; ; – ) was an Assyrian Christian writer and theologian of the 2nd century.

Tatian's most influential work is the Diatessaron, a Biblical paraphrase, or "harmony", of the four gospels that became the standard text of the four gospels in the Syriac-speaking churches until the 5th-century, after which it gave way to the four separate gospels in the Peshitta version. Provided by Wikipedia