 Servetus expanded his ideas on the nature of God and Christ 20 years later in his major work, "Christianismi Restitutio" (The Restoration of Christianity), which caused his burning at the stake in Calvin's Geneva (and also in effigy by the Catholic Inquisition in France) in 1553 .Nowadays most Unitarians see Servetus as their pioneer and first martyr, and his thought was a remarkable influence in the beginnings of Polish and Transylvanian Anti-trinitarian churches, even though his Arian views on Jesus Christ (e.g.retaining belief in the pre-existence of Christ) were different from those of the Polish Socinians (rejecting belief in Jesus' pre-existence), and again from the generation of Thomas Belsham (rejecting also the virgin birth), and very different from what the Unitarian Church generally believes today.