It has been proven that in the eyes of the british, the american colonies only existed to benefit britain economically.
I hope my straight forward explanation can answer your question :)
:"From 1628 to 1642, French sailors captured slaves on foreign slave ships and brought them into the French colonies. "French settlers also bought slaves from foreign slave ships," Frederic Regent, a historian at Paris' Sorbonne, told Enjeux magazine in 2008.
Answer:
this was completely wrong
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.
<span>They were veterans of World War I, had been promised a bonus for their service but the Government failed to fulfill this promise.
This led to the movement known as the Bonus MArches, where around 43,000 people marched together and occupied washington monument to demand the bonuses that promised to them.</span>