|Observed by||United States|
|Celebrations||Special day for the reaffirmation of loyalty to the United States and for the recognition of the heritage of American freedom|
Loyalty Day is celebrated with parades and ceremonies in several U.S. communities, like Batavia, Illinois, although many people in the United States remain unaware of it. Although a legal holiday, it is not a federal holiday, and is not commonly observed.
The holiday was first observed in 1921, during the First Red Scare. It was originally called "Americanization Day," and it was intended to replace the May 1 ("May Day") celebration of the International Workers' Day, which commemorates the 1886 Haymarket Massacre in Chicago.
During the Second Red Scare, it was made an official holiday by the U.S. Congress on July 18, 1958 (Public Law 85-529). Following the passage of this law, President Dwight D. Eisenhower proclaimed May 1, 1959, the first official observance of Loyalty Day.  With the exception of Eisenhower in 1959 and 1960, Loyalty Day has been recognized with an official proclamation every year by every president since its inception as a legal holiday in 1958. 
Statutory definition 
- (a) Designation.— May 1 is Loyalty Day.
- (b) Purpose.— Loyalty Day is a special day for the reaffirmation of loyalty to the United States and for the recognition of the heritage of American freedom.
- (c) Proclamation.— The President is requested to issue a proclamation—
- (1) calling on United States Government officials to display the flag of the United States on all Government buildings on Loyalty Day; and
- (2) inviting the people of the United States to observe Loyalty Day with appropriate ceremonies in schools and other suitable places.
See also 
- "§ 115. Loyalty Day". U.S. Code collection. LII / Legal Information Institute. Retrieved 2009-04-11.
- Conn, Matt, "Loyalty Day celebration set for return to Medford" Wed, Mar 24, 2004, the Wausau Daily Herald
- VFW Loyalty Day
- Notes on 36 U.S.C. § 115
- Eisenhower's signing statement
- Proclamation by Eisenhower in 1959, citing Congress's joint resolution of July 18, 1958
- Search for "Loyalty Day" on the presidency project
- The Code of Federal regulations of the United States of America http://books.google.com/books?id=PTA5AAAAIAAJ&pg=PA42&lpg=PA42&dq=lyndon+johnson+"loyalty+day"+1966&source=bl&ots=2nNXF_Nh8U&sig=--rM0htQGMeTFOPrYSNovYTbfvI&hl=en&sa=X&ei=z6PoT7f9AYXE2gWyzcHZCQ&ved=0CEkQ6AEwAA#v=onepage&q=lyndon johnson "loyalty day" 1966&f=false