During the war, France was supported by troops from Huron, Mississauga, Ojibwa, Winnebago, and Potawatomi tribes.
Both the Elkins Act and the Hepburn Act increased the government's ability to C. REGULATE UNFAIR BUSINESS PRACTICES BY RAILROAD.
The Elkins Act of 1903 authorizes Interstate Commerce Commission (ICC) to impose heavy fines on railroad companies that offered rebates and on shippers who accepted these rebates.
The Hepburn Act or Hepburn Rate Bill gave authority to the ICC to regulate the railroad shipping rates.
Africa's resources were depleted and given to the American Colonies, which hurts their economy up to this day. Also, South America's natural resources were depleted (ie: Aztec gold) which hurt their economy as well. There's probably many more effects but heres one
The clause is really a state's rights clause. A state may not pass a law that makes something illegal that was legal before the law was passed. In other words if a state suddenly passed a law that said it is no longer legal to park your car in front of any government building, but it was legal to do so yesterday, the police cannot come to your door and issue a ticket for parking in front of a government building because you did it yesterday.
The constitution actually uses the phrase ex post facto law in Article 1 Section 10 Clause 1.