Harry Truman actually said...
Now, Therefore, I, Harry S. Truman, President of the United States of America, do hereby designate February 1, 1949, and each succeeding February 1, as national Freedom Day; and I call upon the people of the United States to pause on that day in solemn contemplation of the glorious blessings of freedom which we humbly and thankfully enjoy.
Context
Proclamation 2824—National Freedom Day
01/24/1949