# The Triumph of Orthodoxy (11 March 843)

URL: https://allhistories.com/turkey/timeline/843-the-triumph-of-orthodoxy
Themes: main-event

Empress Theodora, regent for the young Michael III, convened a synod that restored icons permanently. The event is still celebrated in the Orthodox Church on the first Sunday of Lent. A cultural revival followed, and the patriarch Photios and the missionaries Cyril and Methodius spread Byzantine Christianity to the Slavs. The restoration of icons defined Orthodox identity.

## Why it matters
The restoration of icons defined Orthodox identity.

Who Was in Power: [Byzantine Emperors (775-867)](https://allhistories.com/turkey/rulers/byzantine-emperors-775-867)

## Sources
- [Wikipedia — Feast of Orthodoxy](https://en.wikipedia.org/wiki/Feast_of_Orthodoxy)
- [Wikipedia — Theodora (wife of Theophilos)](https://en.wikipedia.org/wiki/Theodora_(wife_of_Theophilos))
- [Encyclopaedia Britannica topic lookup — The Triumph of Orthodoxy](https://www.britannica.com/search?query=The+Triumph+of+Orthodoxy)
- [Wikipedia — Byzantine Empire](https://en.wikipedia.org/wiki/Byzantine_Empire)
- [Wikipedia — Timeline of Anatolian history](https://en.wikipedia.org/wiki/Timeline_of_Anatolian_history)