During the Second Red Scare, it was recognized by the U.S. Congress on April 27, 1955, and made an official reoccurring holiday on July 18, 1958 (Public Law 85-529). President Dwight D. Eisenhower proclaimed May 1, 1955, the first observance of Loyalty Day. In 1958, Eisenhower urged Congress to move Child Health Day to the First Monday in October, to avoid conflicting with Loyalty Day. Loyalty Day has been recognized with an official proclamation every year by every president since its inception as a legal holiday in 1958.
^Eisenhower, Dwight D. (April 28, 1955). Online by Gerhard Peters and John T. Woolley (eds.). "Proclamation 3091 – Loyalty Day, 1955". The American Presidency Project. Retrieved May 1, 2015.CS1 maint: uses editors parameter (link)
(federal) = federal holidays, (state) = state holidays, (religious) = religious holidays, (week) = weeklong holidays, (month) = monthlong holidays, (36) = Title 36 Observances and Ceremonies Bold indicates major holidays commonly celebrated in the United States, which often represent the major celebrations of the month.