Why would a lawsuit involving the inventions of a patent or copyright be considered the exclusive jurisdiction of the federal courts?

Even before world war ii had ended, it was apparent that the allies would not remain friends in the post-war era. describe how the conflict between the superpowers manifested itself in the two following region: asia

How has our understanding of the first sentence of the declaration of independence changed over time?

What did economist john maynard keynes believe about deficit spending?