(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.
The one-third requirement was later changed to one-fifth by the Native American $1 Coin Act, passed on September 20, 2007, and Sacagawea dollars were only 0.8% of the total dollar coins produced through November 2007.owever, Federal Reserve officials indicated to Congress that if the Presidential $1 Coin Program does not stimulate substantial transactional demand for dollar coins, the requirement that the Mint nonetheless produce Sacagawea dollars would result in costs to the taxpayer without any offsetting benefits..