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Religion (from O.Fr. religion religious community, from L. religionem (nom. religio) respect for what is sacred, reverence for the gods, obligation, the bond between man and the gods) is derived from the Latin religiÅ, the ultimate origins of which are obscure.
The faith represents approximately one-third of the world's population and is the largest religion in the world, with the three largest groups of Christians being the Catholic Church, Protestantism, and the Eastern Orthodox Church. The largest Christian denomination is the Catholic Church, with 1.09 billion adherents.