08/18/1966
https://www.presidency.ucsb.edu...
"The ultimate victory of reclaiming this portion of our national heritage really rests in the hands of all the people of America, not just the Government here in Washington."
"But we must act, and act swiftly."
"Now, Therefore, I, Lyndon B. Johnson, President of the United States of America, do hereby extend through the year 1966 the period during which all persons are specially invited to see the United Stat..."
"This sort of carelessness and selfishness simply ought to be stopped; and more, it just must be reversed."