History of Jehovah's Witnesses
Jehovah's Witnesses originated as a branch of the Bible Student movement, which developed in the United States in the 1870s among followers of Christian Restorationist minister Charles Taze Russell. Bible Student missionaries were sent to England in 1881 and the first overseas branch was opened in London in 1900. The group took on the name International Bible Students Association and by 1914 it was also active in Canada, Germany, Australia and other countries. The movement split into several rival organizations after Russell's death in 1916, with one—led by Russell's successor, Joseph "Judge" Rutherford—retaining control of both his magazine, "The Watch Tower", and his legal and publishing corporation, the Watch Tower Bible and Tract Society of Pennsylvania.
Eschatology of Jehovah's Witnesses
Jehovah's Witnesses believe that in 1918, Christ judged all world religions claiming to be Christian, and that after a period of eighteen months, among all groups and religions claiming to represent Christ, only the "Bible Students" (from which Jehovah's Witnesses developed) met God's approval. Watch Tower Society publications claim that the world's other religions have misrepresented God, and filled the world with hatred. They identify "Babylon The Great" and the "mother of the harlots" referred to in Revelation 17:3-6 as the "world empire of false religion"