Events from 451

Battle of Catalaunian Plains - Aetius and Visigoths stop Attila's invasion of Gaul, last great Roman victory

Council of Chalcedon - defines Christ's two natures in one person, deposes Dioscorus, establishes Chalcedonian Definition

Genevieve saves Paris from Attila - convinces Parisians not to flee, organizes prayer and fasting, Attila mysteriously bypasses Paris