 In the year 1803, when the Canton of St. Gallen was formed, the hitherto unincorporated hamlet of Weiern became part of the municipality of Zuzwil.First mentioned in the , Züberwangen was incorporated into the municipality of Zuzwil at the formation of the Canton of St. Gallen in 1803.The region was settled by the Alamanni, a Germanic tribe, some 1,500 years ago.