"....a Protestant theological system and an approach to the Christian life.[1] The Reformed tradition was advanced by several theologians such as Martin Bucer, Heinrich Bullinger, Peter Martyr Vermigli, and Huldrych Zwingli, but this branch of Christianity bears the name of the French reformer John Calvin (Jean Cauvin in Middle French) because of his prominent influence on it and because of his role in the confessional and ecclesiastical debates throughout the 16th century......"
http://en.wikipedia.org/wiki/Reformed_theology
Just curious, how far beyond what Calvin taught in his Institutes did calvinists after him went into what we call modern calvinism?