Sources: George Fox, Journal (~1694); Robert Barclay, Apology for the True Christian Divinity (1676); the Quaker testimonies; Howard Brinton, Friends for 300 Years.

The Religious Society of Friends (Quakers, ~1647 AD) was founded by George Fox (~1624–1691 AD) in northern England during the English Civil War period. Fox’s central conviction: every person has “that of God” within them — the Inner Light or Inward Christ that provides direct divine guidance without external mediators (clergy, sacraments, creeds, liturgy). Quaker distinctives: (1) Silent worship — meetings for worship have no paid minister, no liturgy; participants sit in silence until moved by the Spirit to speak; (2) The testimonies — Simplicity, Peace, Integrity, Community, Equality (SPICE) — lived commitments that generate the Quaker social witness; (3) Peace testimony — absolute pacifism, conscientious objection to all war; (4) No outward sacraments — baptism and Eucharist are purely inward and spiritual; (5) Equality — Fox insisted women could minister and preach as well as men, and opposed slavery at an early date. Quakers were heavily persecuted in 17th-century England and America — imprisoned, fined, executed. William Penn founded Pennsylvania (~1681) as a Quaker refuge and experiment in religious liberty. Quakers punched far above their small numbers in social reform: abolitionism, prison reform, mental health reform, and founding of institutions (Haverford, Swarthmore, Bryn Mawr colleges). Today ~375,000 Quakers worldwide, with the largest communities in Kenya and Bolivia.