NASA HQ are in Houston, Texas. Famous quote "Houston we have a problem" from Apollo 13 relates to it.
<span>In the 1920 the German economy collapsed as a result of B. Inflation. This inflation was so severe that it was referred to using the term hyperinflation. The cause of the hyperinflation was the massive war debt aquired by Germany as a result of the First World War. At the outset of the war Germany had removed its currency from the gold standard and borrowed heavily to finance its campaigns. The resulting debt meant that German currency was not backed by any real asset and so it lost purchasing power.</span>
After 200 years of a monarchy rule, the Romans rebelled against their king and created their own republic government. :) Hope that helps!
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.