what was the conflict that led Pope Gregory VII to excommunicate the holy roman emperor of Europe ,Henry VII, and how was this conflict resolved

observing traffic laws in exchange for driving on the highway.

it was a act of seld fesnse more over it was a peace treaty between the fogein contunries.

- "made the south's economy grow rapidly and a small effect that a lot of people don't know is that it made the more demand of slaves and cotton products. and also new states formed due to plantations growing in size."

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necessary and proper clause. the congress shall have power to all laws which shall be necessary and proper for carrying into execution the foregoing powers, and all other powers vested by this constitution in the government of the united states, or in any department or officer thereof.