Constantine is a Roman Emperor who is best known for what?

He emerged victorious in the civil wars against emperors Maxentius and Licinius to become sole ruler of the Roman Empire by 324. As emperor, Constantine enacted administrative, financial, social and military reforms to strengthen the empire. He restructured the government, separating civil and military authorities.

Explanation:

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nativists tried to get rid of the immigrants as they thought they were going to ruin the u.s.  

because other regions has other things that egypt doesnt have.