(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.
In 1997, Congress passed a law authorizing the mintage of a new gold-colored one dollar coin depicting Sacagawea, but production did not begin quickly enough to meet demand. To fill the gap, the Susan B. Anthony dollar was struck again in 1999; the series was retired the following year.