When did the Roman Empire fall (your thoughts)?

[sonic]

When Attila marched on Rome he was intercepted by Pope Leo along with other officials to dissuade another sack of the defenseless city.

I think that Leo's 'interception' of Attila is a twisting of events to fit later Christian propaganda. If you look at the chronology and the places mentioned it's more likely that Leo was sent to act as an emissary when Attila was already withdrawing from Italy.