They ruled Vietnam for 1,000 years.
It goes way, way back. Check out the Tower of Babel in the Book of Genesis in the Old Testament. Man wanted to reach to Heaven by his own efforts, to be God, as it were. If you read the Genesis account you see that he didn't quite make it. However, that has not stopped his efforts in that direction for centuries and they continue to this day.
The Caesars controlled the Roman Empire, which was all of southern Europe, the eastern Mediterranean area, and much of North Africa; the known world at that time. Caesar (depending on which one) was a benevolent dictator. You could have whatever religious beliefs you wanted to--as long as you recognized Caesar as Lord. The Christians wouldn't, couldn't, do that, hence Caesar would not have total control--and that was where their problems began. For them, Jesus the Christ was Lord, not Caesar. When Caesar tried to force the issue, and a lot of Christians died, it was the beginning of the end for Rome.
For us in this country, it goes back to the British Empire.
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