(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.
When did Congress start taxing income? It was on August 5th in 1861 when the federal government of the U.S. first imposed taxes on income. In relation to the Civil War during that time, the primary purpose of such practice was to gather funding to help finance the war. It was implemented right after the signing of the Revenue Act of 1861.