U.S. President Woodrow Wilson first proclaimed an Armistice Day for November 11, 1919. The United States Congress passed a concurrent resolution seven years later on June 4, 1926, requesting the President issue another proclamation to observe November 11 with appropriate ceremonies. An Act (52 Stat. 351; 5 U. S. Code, Sec. 87a) approved May 13, 1938, made the 11th of November in each year a legal holiday; "a day to be dedicated to the cause of world peace and to be thereafter celebrated and known as 'Armistice Day'."
Al King had the idea to celebrate all veterans, not just those who served in World War I. So he began his campaign to turn Armistice Day into "All" Veterans Day. King was an Emporia, Kansas shoe store owner actively involved with the American War Dads during World War II. King had promoted his notion so much that the Emporia Chamber of Commerce decided to get involved. With the help of then-U.S. Rep. Ed Rees, also from Emporia, a bill for the holiday was pushed through Congress. President Dwight Eisenhower signed it into law on May 26, 1954.
Congress amended this act on November 8, 1954, by replacing "Armistice" with Veterans, and it has been known as Veterans Day since