founder of the International Bible Students Association, forerunner of the Jehovah's Witnesses.

By the time he was 20, Russell had left both Presbyterianism and Congregationalism because he could not reconcile the idea of an eternal hell with God's mercy. He had drifted into skepticism when a chance encounter with some followers of the Adventist movement begun by William Miller (Miller, William) introduced him to the idea that the Bible could be used to predict God's plan of salvation, especially as the plan related to the end of the world.

With the help of tutors, Russell managed to master the use of Hebrew and Greek dictionaries to study the Bible, and he formed his first Bible classes in 1872. With N.H. Barbour of Rochester, N.Y., Russell published Three Worlds and the Harvest of the World in 1877. Basing his judgment on complex biblical calculations, he preached from 1877 that Christ's “invisible return” had occurred in 1874 and that the end of the Gentile times and the beginning of a golden age would come in 1914, followed by war between capitalism and communism or socialism, after which God's kingdom by Christ would rule the earth. Russell dedicated his life and his fortune to preaching Christ's millennial reign. In 1879 he started a Bible journal, later called The Watch Tower, and in 1884 he founded the Watch Tower Bible and Tract Society, which became an extensive publishing business. His own books and booklets (notably seven volumes of Studies in the Scriptures) reached a circulation of 16 million copies in 35 languages, and 2,000 newspapers published his weekly sermons. He was president of the society until his death.

Russell's movement survived the problem caused by the apparent failure of his eschatological prediction.