The roots of non-Trinitarian Christian movements can be traced back to the early church, and include groups such as the Ebionites and the Arians. These groups rejected the doctrine of the Trinity and emphasized the unity of God. Over time, non-Trinitarianism has evolved and taken on different forms, including Unitarianism, Jehovah's Witnesses, and Oneness Pentecostalism. These movements have often been viewed as heretical by mainstream Christianity, and have faced persecution and discrimination throughout history. However, they continue to thrive and attract followers who are drawn to their emphasis on individual interpretation of scripture and rejection of traditional dogma.