It was quite interesting. Did you make it?
It accurately shows the displacements of religion in what was then the Byzantine, or the Holy Roman Empire.
One error is that it does not show Sikhism on that map. Remember that this offshoot of Hinduism was vital in displacing Islam from north-western India.
It is not mine. It excludes a number of religions; only the major players are on it; and which one is winning over the world.