06/23/1965
https://www.presidency.ucsb.edu...
"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..."
"But we must act, and act swiftly."
"I believe that with your help and your continued cooperation, water pollution is doomed in this century."
"No one has a right to use America's rivers and America's waterways that belong to all the people as a sewer."