From July 24 to 27, 2010, some 600 theological ethicists from nearly 75 countries met in Trento, Italy, under the auspices of Catholic Theological Ethics in the World Church. There they heard 30 plenary papers and opted to attend more than 240 concurrent presentations. This note studies the roots, mission, context, goals, and nature of the conference and its participants as a defining moment in church history.