You could say that Rome was on the verge of falling from the time of its very first emperor, or you could say Rome fell in A.D. 410, 476, or 1453. You could even say that it hasn't yet fallen. Here are articles on emperors -- depending on your perspective, who may have contributed to the fall of Rome.
12 Caesars
Portraits of Julius Caesar and the 1st 11 emperors of Rome.Flavian Emperors
Table of dates and data on the Flavian emperors, Vespasian, Titus and Domitian.Roman Emperors
Portraits of 36 of the Roman emperors.Age of Military Anarchy Emperors
Table of the dates and manners of death of the generally short-lived and murdered emperors from Maximinus Thrax to Carinus.Quiz: Chaos Emperors/Tetrarchy.
Civil War of 69 Emperors
Table of dates and data on the emperors who immediately followed Nero, Galba, Otho and Vitellius.Tetrarchy
Table of the emperors from Diocletian to Constantine the Great.Quizzes: End of Tetrarchy/Constantine
Dynasty of Constantine
Table of dates and data on the emperors of Constantine's dynasty. Julian the Apostate
When Julian came to power Christianity was less popular than paganism, but when the pagan Julian was killed in battle, it was the end of Roman official acceptance of polytheism.
