 The "Rittergut" (manor) of "Dorfthum" was incorporated into Thum in 1879.With the zoning reforms in the 1990s, the neighbouring "Reihendorf" villages of "Jahnsbach" and "Herold" were incorporated into Thum.The original brewery, founded in the 14th century, was the property of the church until 1546 when it was acquired by the town, and a brewing cooperative was formed.