History of Demonic Creatures

28-40 A.S.: The Wars of Flame - the first great demon invasion
The great mage Sar-Elam, known as the "Seventh Dragon," sacrifices himself to end the Wars and repel the demon invasion. With his students, Sar-Elam imprisons the demons, preventing them from returning.

62 A.S.: The Schism of the Seven
A split occurs among Sar-Elam's students due to disagreements about the best way to follow the path laid out by the Seventh Dragon. Sar-Antor founds the Order of the Blind Brothers - healers, seers, and embalmers, who worship Asha. Sar-Badon founds the militant Order of the Dragon Knights, striving for discipline of body and mind.

67 A.S.: Prophecy of the demon messiah
Sar-Shazzar utters the Prophecy of the demon messiah, predicting, among other things, the appearance of a half-demon hero who will one day break the demon prison and unleash bloody chaos upon the world.

104 A.S.: The Order of the Dragon Knights becomes secret
On his deathbed, Sar-Badon commands the Dragon Knights to leave the world and dedicate themselves to preserving the teachings of the Seventh Dragon, watching to ensure that the demons do not become active again.
The Dragon Knights must no longer show themselves in the world.

330 A.S.: The 1st eclipse - The War of the Blood Moon - the creation of the orcs
As a result of a total lunar eclipse, a large breach appears in the walls of the demon prison. Demon princes break out and rampage across the lands, destroying everything in their path. Armies are gathered to oppose them, but the demons manage to take them by surprise and destroy them.
Finally, the demons are defeated - but at a terrible cost. Their princes are defeated, and the remnants of their hordes are driven back into the hellish prison. The Dragon Knights emerge from their hiding places to restore the prison as best they can, and then disappear again.

564 A.S.: The 2nd eclipse - the rise of the Demon Lord
A total lunar eclipse. This time, it was predicted by the Blind Brothers, and the Alliance, led by the Dragon Knights, manages to react. Only a small group of demons manages to break through into the world. The names of their princes, the elder children of Urgash, are no longer heard. Instead, the name of Mal-Belet, the new and only Demon Lord, is heard.

717 A.S.: The 3rd eclipse - the Dragon Hunt
During a short-term lunar eclipse, a group of demons manages to slip into the world. They seek out the hidden strongholds of the Dragon Knights and begin a bloody secret war. The outcome of this conflict is currently unknown to anyone.

843 A.S.: The 4th eclipse - the last flight of the Falcon
A total eclipse. This time, the demons storm the capital of the Falcon Empire and massacre the royal family. As soon as their attack is repelled, a civil war begins among the noble houses vying to take the vacated place. The blood-soaked crown is seized by Duke John Gryphon. The empire becomes known as the Holy Empire of Gryphon.

969 A.S.: The 6th eclipse - the war of Queen Isabella
As a result of an eclipse that was not predicted by any calendar, the Blind Brothers are gripped by panic. Large forces of demons appear, marching on the capital of Haven.
This period, known as the War of Queen Isabella, will be the subject of the Heroes of Might and Magic V campaign