What is the name of the primary symbol, which is now outlawed outside of the context of art or science, and was widely used even on the state flag?
Nazi symbolism The 20th century German Nazi Party made extensive use of graphic symbolism, especially the "Hakenkreuz" (swastika), which was used as its principal symbol and, in the form of the swastika flag, became the state flag of Nazi Germany.
Ceremonial deism Ceremonial deism is a legal term used in the United States for nominally religious statements and practices deemed to be merely ritual and non-religious through long customary usage. Proposed examples of ceremonial deism include the reference to God introduced into the Pledge of Allegiance in 1954, the phrase "In God We Trust" on U.S. currency, and the Ohio state motto, "With God, all things are possible".