Details regarding the other half of the Rotaryesque exchange: http://www.washingtonpost.com/wp-dyn/content/article/2007/05/07/AR2007050700086.html
And here's a choice excerpt, in case you never follow through with the link:
"President Bush welcomed the queen with a royal faux pas about her age, suggesting she had witnessed American independence in 1776. Expressing admiration for her long friendship with the United States, Bush noted that Elizabeth had dined with 10 presidents and had "helped our nation celebrate its bicentennial in 17 . . ." He quickly caught and corrected his mistake, "in 1976."
Her Majesty did not appear to be amused."
