(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 God We Trust first appeared on U.S. coins in 1864 and has appeared on paper currency since 1957. A law passed in a Joint Resolution by the 84th Congress (P.L. 84-140) and approved by President Dwight Eisenhower on July 30, 1956 declared In God We Trust must appear on American currency. This phrase was first used on paper money in 1957, when it appeared on the one-dollar silver certificate.