This Roman Ruler Sparked One of History’s Darkest Persecutions!

What is the name for the upper surface of the zone of saturation in an aquifer?
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What is the name of the river that flows through Rome?
What is the smallest country in the world by land area?
"Which Roman emperor was known for his persecution of Christians?
Who was the first president of the United States?
Who wrote "Pride and Prejudice"?