"Leif Erikson, Norseman, son of Erik the Red and great seafarer, in the year 1000 valiantly explored the shores of the American Continent; [...] Now, Therefore, I, Lyndon B. Johnson, President of the United States of America, do hereby designate Friday, October 9, 1964, as Leif Erikson Day and direct Government officials to display the flag on all Government buildings on that day."
--Pub. L. 88-566