According to a philosophical study undertaken by British Museum experts, the Regius Manuscript dates from approximately 1390. Published by James O. Halliwell in 1840, it was mentioned in an inventory of John Theyer's library in 1670. The latter was sold to Robert Scott, with a new inventory dated 1678. The Manuscript then became the property of the Royal Library until 1757 (hence its name Regius), at which time it was donated to the British Museum by King George II. In it is contained the roots of the modern Master Mason's obligations and charges. Some of which have been excluded for the benefit of modern Masonry, but mostly still in tact.
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