Matches in DBpedia 2015-10 for { ?s ?p "The Alberti cipher disk, also called formula, is a cipher disc which was described by Leon Battista Alberti in his treatise De Cifris of 1467. The device embodies the first example of polyalphabetic substitution with mixed alphabets and variable period, and is made up of two concentric disks, attached by a common pin, which can rotate one with respect to the other.The larger one is called Stabilis [stationary or fixed], the smaller one is called Mobilis [movable]."@en }
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- Alberti_cipher_disk comment "The Alberti cipher disk, also called formula, is a cipher disc which was described by Leon Battista Alberti in his treatise De Cifris of 1467. The device embodies the first example of polyalphabetic substitution with mixed alphabets and variable period, and is made up of two concentric disks, attached by a common pin, which can rotate one with respect to the other.The larger one is called Stabilis [stationary or fixed], the smaller one is called Mobilis [movable].".