The words "under God" in the Pledge of Allegiance and the phrase "In God we trust" on the back of a dollar bill haven't been there as long as most Americans might think. Those references were inserted in the 1950s during the Eisenhower administration, the same decade that the National Prayer Breakfast was launched, according to writer Kevin Kruse. His new book is One Nation Under God.
In the original Pledge of Allegiance, Francis Bellamy made no mention of God, Kruse says. Bellamy was Christian socialist, a Baptist who believed in the separation of church and state.