← Field Notes
Numerology · History

Cheiro and the Reconstruction of Chaldean Numerology

The Irish-born society palmist who told fortunes to Mark Twain, Oscar Wilde, and King Edward VII — and whose 1925 Book of Numbers built the foundation of every "Chaldean" numerology reading on the internet today.

2026-05-18·By Alex Costa·9 min read·Sources: 6

Cuneiform tablet — Babylonian astronomical diary recording the death of Alexander the Great
Babylonian astronomical diary recording the death of Alexander the Great.British Museum collection · Public domain · Photographed for Wikimedia Commons

The man who gave the modern world Chaldean numerology was not a Chaldean. He was an Irishman from outside Dublin, born in 1866, who took the name Cheiro from the Greek word for hand. He read palms for Mark Twain, for Oscar Wilde, for the Prince of Wales. He died in Hollywood in 1936, having accumulated, by Time's reckoning, a quarter of a million dollars in fees from rich women. The system he built has outlived him by ninety years.

I. The man

His given name was William John Warner.[1] The title — Count Louis Hamon — was furniture, attached for the rooms he wished to enter. According to his memoirs he had crossed to Bombay as a teenager, met a Chitpavan Brahmin at the port of Apollo Bunder, and been taken into the Konkan valley to read a manuscript on the hand. The manuscript has never been produced. The Brahmin has never been named. The journey is the kind of journey nineteenth-century occultists liked to claim: long, eastward, witnessed by no one.

What is documented is the visitor's book. Mark Twain signed it. So did Oscar Wilde, Sarah Bernhardt, Thomas Edison, Mata Hari, Gladstone, Edison, the Prince of Wales who would later abdicate.

Mark Twain, photographed by A.F. Bradley in 1907
Mark TwainPortrait by A. F. Bradley, 1907 · Public domain
Cheiro has exposed my character to me with humiliating accuracy. — Mark Twain, in Cheiro's visitor's book
Oscar Wilde, 1889
Oscar Wilde, 1889Photograph by W. & D. Downey · Public domain

II. The book

Cheiro's Book of Numbers was published in 1925.[2] It does three things at once. It assigns letters to numbers in a way that breaks from the Pythagorean alphabetical system used by every American numerologist of the period — values one through eight, never nine, the nine reserved as sacred. It lays out a table of compound numbers, ten through fifty-two, each with its own meaning, refusing to reduce them to single digits. And it gives the system a name with weight: Chaldean.

The Chaldeans were the Greek world's image of the deep East — priest-astronomers of southern Mesopotamia, watchers of clay tablets, makers of horoscopes long before Greek philosophy. To call a thing Chaldean in 1925 was to say old, Eastern, true. Cheiro reached for the word the way a stage magician reaches for velvet.

III. The provenance

The historical Chaldeans did practice astronomy. They did keep birth-charts. Their cuneiform tablets survive by the thousand in the British Museum. None of those tablets contain the letter-to-number correspondences Cheiro published. The skeptic James Randi, in his 1995 Encyclopedia of Claims, Frauds, and Hoaxes, files Cheiro under deliberately self-mythologizing figures of the late-Victorian occult revival.[3] The Wikipedia biography uses Randi as a primary source.[1] The scholarly consensus is settled. The provenance is invention.

The honest position Cheiro did not recover an ancient system. He composed one — from Hebrew gematria, Greek letter-numerals, the Indian palmistry he had genuinely studied, and his own confident intuition — and gave it a name that signaled, in 1925, old and Eastern and true.

And yet.

IV. What survives

The book is well-made. The compound-number table gives forty-three distinct readings where Pythagorean numerology gives nine. The man who wrote it foresaw, in print, the abdication of Edward VIII a decade before it happened. He predicted the Jews would return to Palestine and the country would again be called Israel — twelve years before either. A century later his system is still in print, still consulted, still in every reading Arcana Origin generates.

Whether the manuscript existed is the wrong question. The system exists. It is a portrait gallery the reader walks through. The walls were assembled in a Bond Street townhouse, not a Mesopotamian temple — but the figures hanging there can still be looked at, and they still look back.

Walk through your own gallery: our free Chaldean numerology calculator maps the letters of your name to Cheiro's compound numbers instantly, in your browser, with no sign-up.

References & Further Reading
  1. Cheiro. Wikipedia. Biographical synthesis drawing on Cheiro's own memoirs, contemporary press, and skeptical sources.
  2. Cheiro (William John Warner). Cheiro's Book of Numbers. London, 1925. Full text in the public domain via Project Gutenberg and the Internet Archive.
  3. Randi, James. An Encyclopedia of Claims, Frauds, and Hoaxes of the Occult and Supernatural. New York: St. Martin's Griffin, 1995.
  4. "Milestones, Oct. 19, 1936." Time, October 19, 1936. Time archive. Cheiro's obituary, including the figure of $250,000 in lifetime fees.
  1. Cheiro. Wikipedia. Biographical synthesis drawing on Cheiro's own memoirs, contemporary press, and skeptical sources.
  2. Randi, James. An Encyclopedia of Claims, Frauds, and Hoaxes of the Occult and Supernatural. New York: St. Martin's Griffin, 1995. ISBN 978-0-312-15119-5.
  3. Cheiro (William John Warner). Cheiro's Book of Numbers. London, 1925. Available in full text via Project Gutenberg and the Internet Archive.
  4. Chaldea and Babylonian astronomy. Wikipedia. On the historical Chaldeans and what they actually practiced.
  5. "Milestones, Oct. 19, 1936." Time, October 19, 1936. Online archive. Cheiro's obituary, including the figure of $250,000 in lifetime fees.
  6. "'CHEIRO'S' WIDOW IN COURT; Starts Action to Annul Second Marriage of First Husband." The New York Times, October 30, 1942. Article. Posthumous record of Cheiro's marriages.
⊙ Discuss

Comments aren't open yet on Field Notes. If you'd like to discuss this article, share corrections, or suggest a future topic, email hello@arcanaorigin.com — every reply reaches Alex directly.

⊙ Apply the System

Read your own birth through Cheiro's lens.

Every Arcana Origin reading includes both Pythagorean and Chaldean numerology side by side, with the compound-number lookup intact.

Cast Your Reading
⊙ The next deep-dive

One tradition, read deeply, every other week.

No horoscope spam. Honest framing. Sources cited. Unsubscribe in one click.