Ignatius Donnelly, 1831-1901


Biographical note

U.S. Congressman, populist writer and amateur scientist, known primarily now for his theories concerning Atlantis, Catastrophism (especially the idea of an ancient impact event affecting ancient civilizations), and Shakespearean authorship, all of which modern historians consider to be pseudoscience and pseudohistory. Donnelly's work had important influence on the writings of late 19th and early 20th century figures such as Helena Blavatsky, Rudolf Steiner, and James Churchward and has more recently influenced writer Graham Hancock.


  • Atlantis: The Antediluvian World (1882)
  • Ragnarok, the Age of Fire and Gravel (1883)
  • The Shakespeare Myth (1887)
  • Essay on the Sonnets of Shakespeare
  • The Great Cryptogram: Francis Bacon's Cipher in Shakespeare's Plays (1888)
  • Caesar's Column: A Story of the Twentieth Century (1890)
  • Doctor Huguet: A Novel (1891) (as Edmund Boisgilbert.)
  • The Golden Bottle or the Story of Ephraim Benezet of Kansas (1892)
  • The Cipher in the Plays, and on the Tombstone (1899)
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