High Quality Content by WIKIPEDIA articles! "In God We Trust" was adopted as the official motto of the United States in 1956. It is also the motto of the U.S. state of Florida. The Legality of this motto has been questioned because of the United States Constitution forbidding the government to make any law respecting the establishment of a religion; however, the United States Supreme Court has rejected the legal basis for this claim. E pluribus unum is the unofficial motto of the United States. In God We Trust has appeared on U.S. coins since 1864 and on paper currency since 1957. Its Spanish equivalent, En Dios Confiamos, is the motto of the Republic of Nicaragua.