Catholic Encyclopedia article on this body of doctrine held by one of the Antitrinitarian sects that gave rise to Unitarianism.

Links for Unitarian Universalist history.

From the Harvard Gazette, an article on Unitarian minister and abolitionist Charles Follen, and the story of how he promoted the Christmas tree.

Annotated list of science fiction novels and stories with UU characters or references. Also, UU authors of science fiction.

Articles include history of individual churches, including ones that no longer exist.

History of the Unitarian Universalist religion by Mark W. Harris, former director of public information for the UUA.

Online text of Earl Morse Wilbur's 1925 history of the Unitarian movement.

A history of Unitarinism in Denmark.

English General Baptists are now, for all intents and purposes, a part of the Unitarian movement. This site illustrates the adoption by the General Baptists the doctrines of unitarianism and universalism (though this convergence has nothing to do with a similar convergence in the United States) in the first quarter of the nineteenth century.

An online exhibit.

An article written by Ken Morrison of the Lakehead Unitarian Fellowship, Thunder Bay, Ontario, Canada.

Online biographies commissioned by the Unitarian Universalist Historical Society.