Note 55 — Chapter III · THE AUTONOMOUS CENTER IN POLAND AT ITS ZENITH (1501-1648)

[The Arian heresy, as modified and preached by Faustus Socinus (1539-1604), an Italian who settled in Poland, became a powerful factor in the Polish intellectual life of that period. Because of its liberal tendency, this doctrine appealed in particular to the educated classes, and its adherents, called Socinians, were largely recruited from the ranks of the Shlakhta. Under Sigismund III. a strong reaction set in, culminating in the law passed by the Diet of 1658, according to which all "Arians" were to leave the country within two years.]