Freemasonry is a fraternal organisation that arose from obscure origins in the late 16th to early 17th century. Freemasonry now exists in various forms all over the world, with a membership estimated at around 5 million, including just under two million in the United States and around 480,000 in England, Scotland and Ireland. The various forms all share moral and metaphysical ideals, which include, in most cases, a constitutional declaration of belief in a Supreme Being. The fraternity is administratively organised into Grand Lodges (or sometimes Orients), each of which governs its own jurisdiction, which consists of subordinate (or constituent) Lodges. Grand Lodges recognise each other through a process of landmarks and regularity. There are also appendant bodies, which are organisations related to the main branch of Freemasonry, but with their own independent administration. Freemasonry uses the metaphors of operative stonemasons' tools and implements, against the allegorical backdrop of the building of King Solomon's Temple, to convey what has been described by both Masons and critics as "a system of morality veiled in allegory and illustrated by symbols."