Anabaptism (from Neo-Latin anabaptista, from the Greek ἀναβαπτισμός: ἀνά 're-' and βαπτισμός 'baptism'; German: Täufer, earlier also Wiedertäufer) is a Christian movement which traces its origins to the Radical Reformation in the 16th century. Anabaptists believe that baptism is valid only when candidates freely confess their faith in Christ and request to be baptized. This stance, commonly referred to as believer's baptism, is opposed to the baptism of infants, who are not able to make a conscious decision to be baptized.
The early Anabaptists formulated their beliefs in a confession of faith in 1527 called the Schleitheim Confession. Its author Michael Sattler was arrested and executed shortly afterward. Anabaptist groups varied widely in their specific beliefs, but the Schleitheim Confession represents foundational Anabaptist beliefs as well as any single document can.