Answer:
His most famous work is his “I Have a Dream” speech, delivered in 1963, in which he spoke of his dream of a United States that is void of segregation and racism. King also advocated for nonviolent methods of protest, and he organized and staged countless marches and boycotts.
Explanation:
The revolution which more directly captured the spirit of the Enlightenment was the French one. The French revolution was based on three basic principles: equality, freedom, brotherhood.
These three principles were also things which depicted enlightenment as a period extremelly well.
Adolf Hitler lead the Holocaust so the answer would be the same for both questions. The answer to those is between five and six million Jews died during the Holocaust. It is impossible to know how many Jews died exactly though.
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.