Jehovah's Witnesses practices
Jehovah's Witnesses' practices are based on the biblical interpretations of Charles Taze Russell (1852–1916), founder (c. 1881) of the Bible Student movement, and of successive presidents of the Watch Tower Society, Joseph Franklin Rutherford (from 1917 to 1942) and Nathan Homer Knorr (from 1942 to 1977).
Source: Wikipedia — Jehovah's Witnesses practices (CC BY-SA 4.0)