The Book of Concord, published in 1580,…

The Book of Concord, published in 1580, contains the three ancient creeds (Apostles', Nicene, and Athanasian), the Augsburg Confession, the Apology of the Augsburg Confession, Luther's Schmalkaldic Articles, Luther's Small and Large Catechism, Melanchton's Treatise on the Power and Primacy of the Pope, and the Formula of Concord.

This becomes the official teaching of the Lutheran churches but of these Lutheran symbols only the Augsburg Confession and Luther's Small Catechism are accepted by all Lutheran churches.