There is only one religion, though there are a hundred versions of it.
George Bernard Shaw, Plays Pleasant and Unpleasant, Vol. II, preface (1898)
Jehovah’s Witnesses are members of a movement whose adherents believe it to be the restoration of first-century Christianity. The religion is based on the beliefs of Charles Taze Russell, and was further developed by Joseph Rutherford. This map is from World Christian database estimates, which differ significantly from data on the Jehovah’s Witnesses own website (Information source: Wikipedia)