There are also Parthian texts with borrowings from the "Diatessaron". A number of recensions of the "Diatessaron" are extant. A fourth Syriac text is the harmonized "Diatessaron". There is a Persian harmony that seems to have borrowed some readings from the "Diatessaron". Kraeling concluded that the fragment was a copy of Tatian's Diatessaron. It was comparable to Tatian's "Diatessaron", but independent of it. Tatian's influential "Diatessaron", which dates to about AD 160, was perhaps the very first harmony. The most widely read of these was the "Diatessaron". However, the gospel of John possibly addresses the issue, as does Tatian's "Diatessaron". Generally, it has been regarded as a fragment of Tatian's Diatessaron (Gospel harmony). The earliest Christian literature in Syriac was biblical translation, the Peshitta and the Diatessaron. The Arabic Diatessaron has been translated into English, Latin, French, and German.