Richard Nixon actually said...
In Witness Whereof, I have hereunto set my hand this eleventh day of May, in the year of our Lord nineteen hundred seventy-two, and of the Independence of the United States of America the one hundred ninety-sixth.
Context
Proclamation 4133- Modifying Proclamation No. 3279 Relating to Imports of Petroleum and Petroleum Products
05/10/1972