Answer:
1. Julius died first.
2. The Bynatine Empire.
3. The Roman Republic
4. Political revolution, which later made the Roman Republic.
5. Outsiders were able to invade because of the loss of many military, and things weren't going so well Politically inside of rome
6. About 10 years. I'm not entirely sure.
7. Julius ceaser was not a Cristian because Christianity wasn't a thing in his time, they still believed in multiple roman gods. I know this because there was no such thing as Christians in BC, it as in AC, when Christianity started.