Social-Democratic Party of Wisconsin

The Social-Democratic Party of Wisconsin (SDPW) (German: Sozialdemokratische Partei Wisconsin) also referred to as the Socialist Party of Wisconsin was established in 1897 as the Wisconsin state affiliate of the Chicago faction of the Social Democratic Party of America. When that organization merged in 1901 to form a political party known as the Socialist Party of America, the Social-Democratic Party of Wisconsin became the state affiliate of that organization, retaining its original name.

Source: Wikipedia — Social-Democratic Party of Wisconsin (CC BY-SA 4.0)