(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.
Also motivating the controls, on the same date that the controls were imposed, 15 August 1971, Nixon also suspended the convertibility of the dollar into gold, which was the beginning of the end of the Bretton Woods system of international currency management established after World War II.