Antitrinitarianism in Poland Before Socinus. A Historical Outline

This is a reprint of the chapter “Prelude: Antitrinitarianism in Poland before Socinus” by Zbigniew Ogonowski in his "Socinianism: History, Views, Legacy" (Rome: Edizioni di Storia e Letteratura, 2021), 3–56. Reprinted with the permission of Edizioni di Storia e Letteratura. We are grateful to Valentina Saraceni for her permission to reprint this material in the present volume. 
The paper takes an in-depth look at an early, pre-Socinian stage of Polish antitrinitarianism. First, it outlines the historical reasons for the emergence of antitrinitarianism in Poland. Second, it explains how the early Polish antitrinitarians were able to develop a view substantial enough to provide a basis  for Socinianism, a philosophical and religious movement with a pan-European reach. Third, it discusses similarities and differences between the two stages of Polish "Arianism", pre-Socinian and Socinian.