Omnia

Omnia is a fictional country in the Discworld novels of Terry Pratchett. It is a theocracy, and the centre of the Omnian religion. It appears in Small Gods and is mentioned in Carpe Jugulum

A desert kingdom on the continent of Klatch, Omnia is ruled by the Cenobiarch, the head of the Omnian Church, from the Citadel in the capital city of Kom (a sort of combination between Jerusalem and the Vatican). When Omnianism was an intolerant religion it was known for its empire building, as it conquered neighbouring countries in the name of Om. (Perhaps an interpretation of the Crusades.)

After Brutha became the Cenobiarch, the country reversed directions, and became the home of a renowned theological college and library.

These days it is known for the constant arguing amongst the clergy, as new interpretations of Brutha's teachings spring up every day.