Theophilus Lindsey was an English theologian and clergyman who founded the first avowedly Unitarian congregation in the country, at Essex Street Chapel. Lindsey's 1774 revised prayer book based on Samuel Clarke's alterations to the 1662 Book of Common Prayer inspired over a dozen similar revisions in the succeeding decades, including the prayer book still used by the United States' first Unitarian congregation at King's Chapel, Boston.
Theophilus Lindsey
15th century font in the Church of St Anne, Catterick
Self murder or the wolf tried and convicted on his own evidence (1791), a print by Isaac Cruikshank, depicting Joseph Priestley as a wolf in sheep's clothing and Lindsey with a serpent's body
Tomb of Theophilus Lindsey (d. 1808), Elizabeth Rayner (d. 1800) and Thomas Belsham (d. 1829) in Bunhill Fields burial ground
Unitarianism is a nontrinitarian branch of Christianity. Unitarian Christians affirm the unitary nature of God as the singular and unique creator of the universe, believe that Jesus Christ was inspired by God in his moral teachings and that he is the savior of humankind, but he is not equal to God himself.
Ferenc Dávid holding his speech at the Diet of Torda (1568), in the Kingdom of Hungary (today Turda, Romania). Painting by Aladár Körösfői-Kriesch (1896).
"God is One" (Egy az Isten) stained glass window in a Unitarian church in Budapest, Hungary.
Fausto Sozzini was an Italian theologian who helped define Unitarianism and also served the Polish Brethren church.
Constantine I burning Arian books, illustration from a book of canon law, c. 825.