On April 22 in 1864 the US Congress authorized the use of the phrase

In God We Trust

on US coins.

"In God We Trust" was adopted as the official motto of the United States in 1956 as a replacement to the original motto of E Pluribus Unum.

"In God We Trust" has appeared on U.S. paper currency since 1957.

The use of "In God We Trust" on American coins, paper money and as an official motto of the USA is a violation of the First Amendment which reads:

Congress shall make no law respecting an establishment of religion, or prohibiting the free exercise thereof; or abridging the freedom of speech, or of the press; or the right of the people peaceably to assemble, and to petition the Government for a redress of grievances.