# Tatian's Diatessaron (c. 170)

URL: https://christianity-history.com/timeline/170-tatian-s-diatessaron
Location: Syria
Themes: Scripture

Tatian harmonizes the four Gospels into a single narrative that becomes the standard Gospel text in Syriac churches for centuries. At this point in the timeline (c. 170), the Bishop of Rome was Pope Soter (166/7 – 174/5). Dates for the earliest bishops of Rome are traditional and uncertain.

## Why it matters
Tatian's Diatessaron mattered because it shaped the text, canon or translation of the Bible and how Christians read it.

Pope at the time: [Pope Soter](https://christianity-history.com/popes/pope-soter)

## Sources
- [Wikipedia — Diatessaron](https://en.wikipedia.org/wiki/Diatessaron)
- [Encyclopaedia Britannica topic lookup — Tatian's Diatessaron](https://www.britannica.com/search?query=Tatian%27s+Diatessaron)
- [Wikipedia — Early Church (period overview)](https://en.wikipedia.org/wiki/Ante-Nicene_period)