The most widely used tarot spread in the world carries a name that makes two historical claims, and both are false. The actual history is better than the invented one.
What Waite printed
A. E. Waite published The Pictorial Key to the Tarot in 1910, and the spread appears there under the heading An Ancient Celtic Method of Divination. That heading is the origin of the name and of the belief.
Waite's own prose is more careful than his heading. He describes it as a short process that has been used privately for many years past in England, Scotland and Ireland, which is a claim about recent private practice in the British Isles, not about antiquity, and not about Celts.
The heading did the damage. It has been reprinted continuously for over a century.
Where it probably came from
Waite was a member of the Hermetic Order of the Golden Dawn, and the spread has the marks of that milieu. Documentary work on Golden Dawn papers, including material associated with Frederick Leigh Gardner, a member and book collector, points to an origin in the order's orbit in the 1890s.
The motive is easy to reconstruct. The Golden Dawn's own divinatory method, the Opening of the Key, is a five-stage procedure using the whole deck that can take an hour or more. A ten-card layout that produces a usable reading in a few minutes is exactly what a busy practitioner would want.
Why "Celtic"
Because of when it was named. The Celtic Revival was at its height in the 1890s and 1900s, and a Celtic pedigree was culturally valuable in exactly the London and Dublin circles Waite moved in. Yeats was in the Golden Dawn. Attaching a Celtic name to a new method was not fraud so much as fashion.
The cross-and-staff shape has no Celtic precedent. The Celtic cross as a monument type, a ring around the intersection, does not resemble the layout, which is a plain cross with a column of cards beside it.
Why this does not diminish it
A spread is a piece of interpretive design, and it should be judged as one. This one has lasted over a century, in constant competitive use, against thousands of alternatives. It survived because the design works:
- It separates the situation from the thing crossing it, which is the single most useful distinction a spread can make.
- It distinguishes what the querent believes from what is around them, positions seven and eight, which is where most readings actually turn.
- It puts hopes and fears in the same position, which is either its cleverest feature or its most annoying one, depending on the day.
None of that requires it to be old. The spread is a good instrument built by named people in the 1890s, and that is a more interesting fact than a druidic origin would have been.