Robinson, John J. (1989). Born in Blood. The Lost Secrets of Freemasonry. New York: Evans, 56. ISBN 9780871316028. OCLC20419501. “... by the late fifteenth century virtually every man in England was free.” Robinson also states that the presence of the requirement meant that Freemasonry was organisationally much older than the 1717 founding of the Premier Grand Lodge of England.
