The Helvetic Consensus Formula is the last doctrinal Confession of the Reformed Church of Switzerland, and closes the period of Calvinistic creeds. It has been called a 'symbolical after-birth.' It was composed in 1675, one hundred and eleven years after Calvin's death, by Professor John Henry Heidegger, of Zurich (1633–1698), at the request and with the co-operation of the Rev. Lucas Gernler, of Basle (d. 1675), and Professor Francis Turretin, of Geneva (1623–1687). It never extended its authority beyond Switzerland, but it is nevertheless a document of considerable importance and interest in the history of Protestant theology. It is a defense of the scholastic Calvinism of the Synod of Dort against the theology of Saumur (Salmurium), especially against the universalism of Moses Amyraut.