Answer:
During the Civil War , federal powers expand to include an income tax and a national currency.
The "New" Religion that is being referred here that acquired support in the Roman Empire in the AD 300's was CHRISTIANITY. Christianity is the religion that is based on the life of Jesus Christ. He is considered as the center of this religion and christians believe that there is only one true God.
The Federalist Papers were a series of documents, reportedly 85 different ones, that substantiated the ratification of the Constitution. Essentially made to defend it's ratification against the anti-federalists.
