(plural paradigm shifts) 1  A radical change in thinking from an accepted point of view to a new one, necessitated when new scientific discoveries produce anomalies in the current paradigm. ( US) A radical change in thinking from an accepted point of view to a new belief.
The use of IN GOD WE TRUST has not been uninterrupted. The motto disappeared from the five-cent coin in 1883, and did not reappear until production of the Jefferson nickel began in 1938. Since 1938, all United States coins bear the inscription.
He didn't. Technically yes, but for all practical purposes the process of moving to a fiat currency started in the 1910's and moved somewhat steadily forward. F.D. Roosevelt took much greater action to end the gold standard than did Nixon when Roosevelt let the dollar float in 1933 to combat the shrunken monetary supply during the depression. The Bretton Woods system created in 1944 pegging other currencies to the dollar further assured the eventual termination of the gold standard.