Cooperation with other Christians in the antislavery cause gradually led Friends out of their secluded religious life. They also came closer to other Protestants through the evangelical movement originally associated with John and Charles Wesley. Evangelical Friends were concerned with emphasizing the inerrancy and uniqueness of the Bible, the Incarnation and atonement of Christ, and other characteristic Protestant doctrines which, although seldom denied outright by Friends, had tended to be subordinated to the quietistic emphasis on the Inner Light. In the early 19th century most leading English Friends were sympathetic to evangelical ideas, although they did not lose their unity with more traditional-minded Friends.

In the United States unity proved more difficult. Friends had gone west—from Virginia and North Carolina because of difficulties over slavery but also from Pennsylvania. As new yearly meetings were formed—Ohio (1812), Indiana (1821), Iowa (1863), Kansas (1872), Oregon (1893), California (1895), and Nebraska (1908), among others—ties with the London Yearly Meeting, the “mother” meeting, became weaker, and no American yearly meeting had a predominant position. Leaders of the Philadelphia Yearly Meeting, mostly rich merchants with strong ties to England, were sympathetic to evangelicalism, but many poorer country Friends left the meeting, no longer feeling a unity with the beliefs of the Philadelphia ministers and elders or with the way they exercised their authority. Elias Hicks (1748–1830), whose name was applied to these separatists, placed extreme emphasis on the Inner Light; he wrote that it might be a good thing if God withdrew the Bible, since he could inspire worshippers to write new scriptures that would probably be better than the originals. Since the various American yearly meetings corresponded with one another, the Hicksite separation spread to other yearly meetings that had to decide to which portion of the Philadelphia Yearly Meeting to write. A pastoral visit to the United States (1837–40) by the leading English evangelical Friend, Joseph John Gurney (one of the few systematic theologians ever produced in the Society of Friends), led to a further separation when the evangelical or “Gurneyite” New England Yearly Meeting disowned John Wilbur, an orthodox quietist Friend.

Schism is often a sign of religious vitality, and so it proved then. Whether Hicksite, Wilburite, or Gurneyite, all branches of Quakerism began to show vigour unknown in their days of torpid unity. With more vital preaching, many converts not devoted to the inherited peculiarities of Quaker tradition joined Friends; to them it seemed more important to assure a saving ministry than to preserve the traditional mode of worship. There thus grew up, especially in the Midwest and Far West, “pastoral meetings” in which a paid minister assumed the functions of delivering a sermon and exercising pastoral care of members. Such meetings often called themselves “Friends’ Churches”; congregational singing was a part of the service, which might have only a few moments of silence, and baptismal and marriage ceremonies were introduced. In doctrine, worship, and polity they were not unlike Congregational churches, though they remained faithful to Friends’ social testimonies. Even in England, where such innovations were not introduced, Friends, under the influence of the evangelical revival, discontinued disownment for irregular marriages and curtailed the powers of elders and overseers, which had been a profoundly conservative force.

The 20th century

Friends in 1900 were divided into three groups. Yearly meetings of evangelical, or “orthodox,” Friends were in fellowship with one another and with the London and Dublin yearly meetings. In the United States these Gurneyite meetings in 1902 formed the Five Years’ Meeting (now the Friends United Meeting). The “conservative” American yearly meetings, in fellowship with one another, maintained traditional Quaker customs and mode of worship. The Hicksite yearly meetings, which formed the Friends General Conference in 1902, remained the most open to modern thought. During the century, these divisions were much softened. Theological distinctions receded in importance, and the habit of cooperation in such agencies as the American Friends Service Committee drew Friends together.

The 20th century also saw the extension of Quakerism to Africa and continental Europe. Quakerism took root in the Netherlands in the 17th century but died out in the mid-19th, as did groups in Congéniès, France, and Bad Pyrmont, Germany. Quaker relief work in World War I and its aftermath produced new yearly meetings in Germany, the Netherlands, France, Sweden, and Switzerland, but numbers remain small.

In the 20th century, Quakers were active in a number of key historical moments. They actively supported women’s and Black suffrage movements in the United States and elsewhere, and many were heavily involved in the American civil rights movement. Bayard Rustin, a key adviser to Martin Luther King, Jr., and main organizer of the March on Washington, credited his nonviolence to his Quaker roots. As pacifists, Quakers were conscientious objectors for numerous military conflicts throughout the century and were especially vocal protesters of the Vietnam War. In South Africa, Quakers actively opposed the apartheid regime.

The influence of Quakers

Quaker customs and the exclusion of Friends from many professions in England concentrated their secular achievements. Plainness meant that painting, music, and the theatre were proscribed. For a century, trust in the Inner Light inhibited the foundation of colleges—though in the 19th century American Friends founded colleges like Earlham, Haverford, and Swarthmore and individual Friends founded Bryn Mawr College, Cornell University, and Johns Hopkins University. Friends’ schools emphasized science; the chemist John Dalton, the geneticist Francis Galton, the anthropologist E.B. Tylor, the astronomer Arthur Eddington, and Joseph Lister, discoverer of antisepsis, were Friends. In trade Friends were trusted and got customers; they trusted one another and extended credit—thus the many successful Quaker firms and banks, of which Barclay’s and Lloyd’s are the best known. Friends also pioneered in invention, developing the puddling process for iron and the safety match and promoting the first English railroad line.

Disdaining formal education and a clerical intelligentsia, Friends, not surprisingly, often failed theologically (that is, could not solve some of the intellectual problems of their faith). But they would agree with the 19th-century Danish religious philosopher Søren Kierkegaard that “the highest of all is not to understand the highest but to act upon it.”