(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.
It was also placed on the silver dollar coin, the half-dollar coin and the quarter-dollar coin, and on the nickel three-cent coin beginning in 1866. Later, Congress passed the Coinage Act of February 12, 1873. The use of IN GOD WE TRUST has not been uninterrupted.