03/15/1966
https://www.presidency.ucsb.edu...
"TODAY marks the 50th anniversary of the granting of United States citizenship to the people of Puerto Rico by the Congress of the United States."
"I am confident that I speak for the people of all the United States when I extend to you felicitations and warmest congratulations on this historic occasion."
"I do not want to and I never expect to turn back."
"I have come here today not to call attention to the advancing age of the Office of Education, but rather to celebrate its next 100 years."