(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.
They stopped making silver dollars for general circulation in 1935 (Minted 1,960K) because the silver was worth more than a dollar. We started making silver bullion coins, that's proof and uncirculated silver dollars for collectors in 1992, I think. They still come out every yea and cost a lot more than a dollar because they are an ounce in weight and silver is worth much more than that and there are lots of people who like collecting them.