Servetus is considered by some Unitarian churches as one of the pioneers and intellectual forerunners of their religious movement. Unitarism is a branch of Protestantism that affirms God's unity and freedom of thought in religious matters. The First Unitarian Church of Brooklyn (New York) was founded in 1833 and its neo-Gothic style building shelters a magnificent collection of stained-glass windows crafted by Tiffany. The window that shows Servetus, placed beside that of Faustus Socinus, is part of a set of stained-glass windows located on the second floor of the sanctuary, which shows several forerunners of the Unitarian movement. Photograph by Jaume de Marcos. February, 2014.