Chalcedonism Chalcedonism in-game refers to forms of Christianity pre-Great Schism that followed the definition of the nature of Christ decided at the Council of Chalcedon in AD 451. It would spread across Europe, through the Roman Empire, until the schism. After the schism, Chalcedonism would become Catholicism in the West, and Orthodoxy in the East.

If you want to convert a province to this religion using the: change_religion [<province ID>/<Target Country Tag>] [<religion>] command you have use the word chalcedonism as the religions name in the afor mentioned command. For example: change_religon 284 chalcedonism. This will change the religion in province 284 to chalcedonian.

See also: The Great Schism

Bonuses Edit

  • Stability cost modifier -10%
  • Tolerance of the true faith -1


Chalcedonism possesses no unique mechanics.

Chalcedonism is in the christian group, and all other religions in the christian group pre-schism are considered heretics, i.e.Arian Arianism,Nestorian Nestorianism, and Religion copticMiaphysitism. Every other religion will be considered heathens.

Events Edit

Chalcedonism will spread to any neighboring province until the year 867, with an exception to Hellenic provinces in which it's until the year 840.

The Great Schism can happen to Chalcedonian nations any time after the mid-800s.

Convert to Chalcedonism Chalcedonism Edit


  • Stability at least 1
  • Is at Peace


  • Religion Changed to Chalcedonism
  • Lose 4 Stability
  • [Country] gets Recent Conversion for 5 years giving the following effects:
    • +2.00 National unrest
    • +20.0% Stability Cost Modifier 

Possible for: