Christmas (Christmas Eve on 24th December, First Day on 25th Dec, Second Day 26th Dec) and Easter (the date is varied: it is after the first full moon after or on 21March; it is celebrated on Sunday and Monday).
No, Though the Romans eventually became christian. They are different. The Romans religion was made up of borrowed gods from the kingdoms they conquered the conquered ,accept barbarian.
No, Catholicism was founded by Jesus Christ and spread by his apostles. When Constantine the Great made the religion legal, however, it did give a tremendous boost to the Church since they no longer...
I'm sorry but Answers.com is meant for short, concise answers. It would take many volumes of an encyclopedia to answer your request. That is way beyond the scope of this service. For a brief time...