Most of the first Remonstrants followed a pure version of Arminianism. It confirms the opinion of the remonstrants already expressed in 1618. After that a month was spent on procedural matters concerning the Remonstrants. They formalized their views in "The Opinion of the Remonstrants" (1618). The synod then called upon representatives of the Remonstrants to express their beliefs. Those who supported them chose to call themselves "Remonstrants". Since 1795 Rotterdam has hosted the chief congregation of the liberal Protestant brotherhood of Remonstrants. Arminius himself and the original Remonstrants avoided a clear conclusion on this matter. The Remonstrants guided by Johannes Wtenbogaert set up a presbyterial organization. The Remonstrants first received official recognition in 1795. An exile community of Remonstrants was founded in Antwerp in 1619. Jan Uytenbogaert gave to the Remonstrants a catechism and regulated their church order.