Pop was the baseline culture of the early 1960’s.
Article III of the Constitution establishes the federal judiciary. Article III, Section I states that "The judicial Power of the United States, shall be vested in one supreme Court, and in such inferior Courts as the Congress may from time to time ordain and establish."
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Because over time things change. An example of that would be back in the 1800's they rode horses as transportation today we ride cars and aeroplane as transportation.
