Roger Williams.
2001
According to Wikipedia:
"The actual term, "separation of church and state", does not appear in the Constitution, but rather derives from a letter written by Thomas Jefferson to a group identifying themselves as the Danbury Baptists."
http://en.wikipedia.org/wiki/Separation_of_church_and_state
:-} Sharp as ever Luis.
Yup, Jefferson borrowed the notion from Roger Williams and Justice Black enshrined a sitting Presidents persoanl letter to a Danbury Baptist Minister as legal precedent in direct contravention of law.
It has always been my conviction that Bush should simply pick out a Danbury Baptist Minister and write him a letter saying that "separation" no longer obtains.
Voila!