On this day in 1530

The Augsburg Confession, the primary confession of faith of the Lutheran Church, was presented to the Holy Roman Emperor Charles V at the Diet of Augsburg.

Here is a little history:
The Augsburg Confession is, by its catholic nature (meaning "universal" in its application to Lutheran churches), normative to all Lutheran Churches everywhere and in all times. It is also one of the most important documents of the Lutheran reformation. The Augsburg Confession was written in both German and Latin, and was presented by a number of German rulers and free-cities at the Diet of Augsburg on June 25, 1530. The Holy Roman Emperor Charles V had called on the Princes and Free Territories in Germany to explain their religious convictions in an attempt to restore religious and political unity in the Holy Roman Empire, and rally support against the Turkish invasion. It is the fourth document contained in the Lutheran Book of Concord.

To Read the Augsburg Confession in full please click this link.