Underground society

A secret society is a club or an organization whose activities, events, and inner functioning are concealed from non-members. The society may or may not attempt to conceal its existence. The term usually excludes covert groups, such as intelligence agencies or guerrilla insurgencies, that hide their activities and memberships but maintain a public presence. The exact qualifications for labeling a group a secret society are disputed, but definitions generally rely on the degree to which the organization insists on secrecy, and might involve the retention and transmission of secret knowledge, the denial of membership or knowledge of the group, the creation of personal bonds between members of the organization, and the use of secret rites or rituals which solidify members of the group.

Anthropologically and historically, secret societies are deeply interlinked with the concept of the Männerbund, the all-male "warrior-band" or "warrior-society" of pre-modern cultures (see H. Schurtz, Alterklassen und Männerbünde, Berlin, 1902; A. Van Gennep, The Rites of Passage, Chicago, 1960).

A purported "family tree of secret societies" has been proposed, although it may not be comprehensive.

Alan Axelrod, author of the International Encyclopedia of Secret Societies and Fraternal Orders, defines a secret society as an organization that:

David V. Barrett, author of Secret Societies: From the Ancient and Arcane to the Modern and Clandestine, uses slightly different terms to define what qualifies a secret society. He defines it as any group that possesses the following characteristics:

Barrett goes on to say that "a further characteristic common to most of them is the practice of rituals which non-members are not permitted to observe, or even to know the existence of." Barrett's definition would rule out many organizations called secret societies; graded teaching is usually not part of the American college fraternities, the Carbonari, or the 19th century Know Nothings.

Because some secret societies have political aims, they are illegal in several countries.Poland, for example, has included a ban on secret political parties and political organizations in its constitution.

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