key aspect of his "unifying theology", later became popular with various old High Church divines such as some Anglican Latitudinarians. Works Modern editions of selected works are available in Georg Calixt, Werke in Auswahl, 4 vols, ed. Inge Mager (Göttingen: Vandenhoeck & Ruprecht, 1970–82). De praecipuis Christianae religionis capitibus hodie controversis disputationes XV Helmstedt, 1613 Epitome Theologiae Goslar, 1619 De vera christiana religione et ecclesia Helmstedt, 1633 References Further reading 1586 births 1656 deaths People from Schleswig-Flensburg 17th-century Latin-language writers German Lutheran theologians People from the Duchy of Schleswig Academic staff of the University of Helmstedt 17th-century German Protestant theologians German male non-fiction writers 17th-century German writers 17th-century German male writers 16th-century Lutheran theologians 17th-century Lutheran theologians