Key Doctrines - Justification by faith alone, meaning personal faith in Jesus Christ is necessary for salvation. Emphasis on individual interpretation of the Bible. Priesthood of all believers, meaning all Christians have direct access to God without mediation by clergy
Martin Luther - Catalyst of the Reformation, emphasizing justification through faith
John Calvin - Key figure in Calvinism, advocating for a temperate lifestyle and strong biblical preaching
John and Charles Wesley - Founders of the Methodist Church, emphasizing hymn singing, prayers, and bible readings
William Booth - Founder of the Salvation Army, noted for its military-style organization and emphasis on social welfare
Society of Friends (Quakers) - Believe in direct communication with God, pacifism, and simple, unstructured worship