The Perennial cults are a vast number of beliefs and philosophies based around a group of divine beings known as the Perennials. The vast worship of these beings is the official state religion of the Roman Empire, and all the states and nations that are part of it. Many of the cults are heavily influenced by muggle religions (such as Christianity, Islam, Zoroastrianism and many others), and these influences began to appear as over the years many Concordant muggleborns brgan to adapt their first religion to the Perennial worship.