All Souls Church, Unitarian is a Unitarian Universalist church located at 1500 Harvard Street NW at the intersection of 16th Street, Washington, D.C., roughly where the Mt. Pleasant, Columbia Heights, and Adams Morgan neighborhoods of the city meet. The design of its current building, completed in 1924, is based on St. Martin's-in-the-Fields in London. It was listed on the National Register of Historic Places in 2020. All Souls, a member of the Unitarian Universalist Association of Congregations, describes its theology as having evolved from a liberal Christian tradition into a "rich pluralism." History Nineteenth century All Souls was founded in 1821 as the First Unitarian Church of Washington; among the church's founding members were President John Quincy Adams, Vice President John C. Calhoun, and Charles Bulfinch (who designed the original church building at 6th and D Streets NW and more famously the United States Capitol). The All Souls bell was cast in 1822 by Joseph Revere, the son of Paul; this bell, paid for with contributions by, among others, President James Monroe, originally served as a quasi-official town bell for Washington, DC. The church has a long tradition of promoting liberal religious views and social justice issues. In the first half of the 19th century, it was known for its opposition to slavery, and counts among its past ministers the prominent abolitionist William Henry Channing. William Henry Channing gave a sermon on the morning of February 8, 1863 at the Unitarian Church, which was still located on the corner of 6th and D Streets Northwest. Later that evening abolitionist and women's rights activist John Celivergos Zachos gave a prominent sermon to the Freedman of the Southern States. The subject was entitled "The Unity of the Human Race" with a special reference to the Freedman of South Carolina. In 1877 the congregation changed its name to All Souls Church, a reflection of the words of William Ellery Channing, founding father of Unitarian Universalism (and uncle of Willam Henry Channing): "I am a member of the living family of all souls." Twentieth century In 1944 All Souls called A. Powell Davies to be its minister. Davies became nationally prominent for his progressive views, advocating civil rights for African-Americans and women, desegregation, and for keeping control of nuclear weapons in civilian hands. It was during Davies' tenure that All Souls organized a large shipment of school supplies for the children survivors of the