# Baptism of Boris I of Bulgaria (864)

URL: https://christianity-history.com/timeline/864-baptism-of-boris-i-of-bulgaria
Location: Pliska, Bulgaria
Themes: Mission

Khan Boris I accepts baptism and Bulgaria becomes a Christian state. At this point in the timeline (864), the Bishop of Rome was Pope Nicholas I "the Great" (24 April 858 – 13 November 867).

## Why it matters
Baptism of Boris I of Bulgaria mattered because it carried Christianity to new peoples and regions, changing the map of world Christianity.

Pope at the time: [Pope Nicholas I "the Great"](https://christianity-history.com/popes/pope-nicholas-i-the-great)

## Sources
- [Wikipedia — Christianization of Bulgaria](https://en.wikipedia.org/wiki/Christianization_of_Bulgaria)
- [Encyclopaedia Britannica topic lookup — Baptism of Boris I of Bulgaria](https://www.britannica.com/search?query=Baptism+of+Boris+I+of+Bulgaria)
- [Wikipedia — Medieval Church (period overview)](https://en.wikipedia.org/wiki/History_of_the_Catholic_Church#Middle_Ages)