(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.
Kennedy Gold Coin Becomes a Numismatic Disaster. On August 5, 2014 at 12pm Noon EST, the U.S. Mint began to sell a Kennedy .999 Gold Half Dollar to commemorate the 50th Anniversary of the 1964 John F. Kennedy Half Dollar. Prior to this August 5th offering, the U.S. Mint had manufactured 40,000 coins.