A time of Emperors and Councils

AD 300 – 1000

What was happening during this period?

This was a time of unrest in the Church. There were several heresies gaining popularity and against Church teachings and doing damage to the believers. They needed to be corrected. Some are listed below.

The Church called for councils to respond to heresies and to define the teachings. This is a time when saints made a big impact on the course of history and the Church. They wrote, influenced or helped to define the truth. They helped steer the Church and world in the right direction.

Heresy is the holding and spreading of beliefs that go against accepted church teaching.

TimeHeresy False teachingChurch action Saints
320 – 600 ArianismDenied the divinity of Christ – Jesus Council of NicaeaSaint Athanasius
Fifth Century PelagianismDenied the necessity of Grace and denied original sinCouncil of CarthageSt Augustine
Pope St Gregory the Great
431NestoriusChrist is two-persons
Mary is not the mother of God
St Cyril
seventh century MonothelitismChrist has only one naturePope Leo 1 the Great
Eighth and ninth centuriesIconaclasism Destruction of sacred imagesThe Second Council of Nicaea AD787St John Damascene
1054Byzantines Great Schism

Click on each of these saints to find out more about each one.