A history of Unitarinism in Denmark.

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

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

An online exhibit.

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

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.

Links for Unitarian Universalist history.

History of the Unitarian Universalist religion.

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.