Cult Of The Sanguineus Sun

Little is know of the Cult Pre-Imperium it is said to be a ancient if not one of the oldest religions.

Upbringing
The first bit of Information that came was from migrants migrants on ‘The Great March’ speaking of a City that is Thriving from A Man's work who preaches about a god of light and dark and how the destruction is our human sin to deal with but in a way to keep out humanity to thrive. After a while the migrants stopped coming from this place rumors arose that it became desolate so people started to avoid, it later became a legend. When the Imperium formed and people felt safe they searched for this legend. When word reached they found the city it was described as a desolate place but a Ancient fort and a place of worship in the center, for the Imperium this was a way to expand a way to unite people. The Imperium sent diplomat to this place. The Diplomat was accepted in but warned not to go outside the walls of the place at night, the diplomat was told to wait tell night to see what they face but he would be safe. That night the Diplomat saw hundreds of thousands Mutants crawl out of ruined  buildings and sewers. The Leader of the Cult, the Blood Forger, asked for one thing in return for their loyalty the Imperium. A purge of these Thieves of the Sun's flame. The Diplomat returned to Imperium Capital and they sent weapons to fight these monsters and later that week ‘The Purge of Stolen Flames’ occured. After the Purge the city identified as Roma was brought into the Imperium.

Practices
The God of the Cult is “The Red Sun”