Note: A second version of Bacon's cipher uses a unique code for each letter.

Many people still use Bacon's cipher today.

Francis Bacon developed Bacon's cipher as such a technique.

This type of cipher, also known as Bacon's cipher, had been discussed in Bacon's work.

The alleged discoveries were published in Owen's multi-volume work Sir Francis Bacon's Cipher Story (1893-5).

Owen's book Sir Francis Bacon's Cipher Story (1893-5) claimed to have discovered a secret history of the Elizabethan era hidden in cipher-form in Bacon/Shakespeare's works.

Both Ignatius L. Donnelly and Elizabeth Wells Gallup attempted to find such messages by looking for the use of Bacon's cipher in early printed editions of the plays.

Bacon's cipher or the Baconian cipher is a method of steganography (a method of hiding a secret message as opposed to a true cipher) devised by Francis Bacon in 1605.

The Great Cryptogram: Francis Bacon's Cipher in Shakespeare's Plays (1888), in which he maintained he had discovered codes in the works of Shakespeare indicating that their true author was Francis Bacon.

In his multi-volume Sir Francis Bacon's Cipher Story (1893), he claimed to have discovered Bacon's autobiography embedded in Shakespeare's plays, including the revelation that Bacon was the secret son of Queen Elizabeth, thus providing more motivation to conceal his authorship from the public.

Owen's book Sir Francis Bacon's Cipher Story (1893-5) stated that Queen Elizabeth I was secretly married to Robert Dudley, Earl of Leicester, who fathered both Bacon and Robert Devereux, 2nd Earl of Essex, later ruthlessly executed by his own mother.