You know because we have seen a lot of connections to SF and 8/11 it's probably because San Francisco is the one of the most Catholic cities in America. Three big events happened in the Catholic church in the last 50 years that might be dates they're counting from. One is the changing of the words in the mass, that was a really big deal.
The document was dated 7 July 2007 and carried an effective date of 14 September 2007. Pope Benedict released an explanatory letter at the same time.
And the 33 day pope who was going to reform the Vatican bank...
Pope John Paul I
Pope John Paul I (Latin: Ioannes Paulus I; Italian: Giovanni Paolo I; born Albino Luciani; 17 October 1912 – 28 September 1978) was head of the Catholic Church and sovereign of the Vatican City from 26 August 1978 to his death 33 days later
And "God's banker" who was found hanging beneath a bridge when the takeover of the Vatican bank by Freemasons happened.
Roberto Calvi (13 April 1920 – 17 June 1982) was an Italian banker dubbed "God's Banker" (Italian: Banchiere di Dio) by the press because of his close association with the Holy See. A native of Milan, Calvi was Chairman of Banco Ambrosiano, which collapsed in one of modern Italy's biggest political scandals.
I'm posting this because of the connections to Pope Francis, San Francisco and the golden gate... There might be some clues in those events..