Freemasonry
Anderson was a Freemason, the Master of a Masonic lodge, and a Grand Warden of the Grand Lodge of London and Westminster. He was commissioned in September 1721 by the Grand Lodge to write a history of the Free-Masons, and it was published in 1723 as The Constitutions of the Free-Masons. Anderson's name does not appear on the title page, but his authorship is declared in an appendix.
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