William Playfair: The Forgotten Predecessor

Compiled from the Foundation for the Study of Cycles archive (Cycles Magazine, vols. 1950–1957)

A Note Before You Start

Unlike the Brunt entry, this one is thin by necessity — Playfair appears in the archive via a single reader's letter, plus one index reference to a reprinted chart. There's no article, no analysis by Dewey himself, no cycle lengths attributed to him. What makes him worth writing up isn't volume of material — it's that even the letter-writer flagged him as someone who'd been overlooked by cycles researchers who should have known his work.

How He Surfaces in the Archive

Playfair doesn't appear because the Foundation was studying him — he appears because a reader corrected the Foundation's blind spot. In the 1956 volume, a reader named Edward F. Moore of New York wrote in response to a piece on Sir Flinders Petrie's The Revolutions of Civilization (1911), which Dewey had reprinted and praised as pioneering work on long cultural cycles. Moore's letter reads, in substance:

He was especially interested in the piece on Petrie, but pointed out that the Foundation might not be familiar with an earlier writer who did similar work a full century before Petrie: William Playfair, who published in London in 1805 a book titled An Inquiry into the Permanent Causes of the Decline and Fall of Powerful and Wealthy Nations. Moore happened to own an original copy, and sent the Foundation a photostatic copy of the title page and Playfair's principal chart — which the Foundation then reprinted across two pages of the magazine.

That's the entirety of the biographical and bibliographic content on Playfair in the currently loaded volumes.

What This Tells You

A few things worth noting for your forum piece:

1. Playfair predates the field's own sense of its history. Even the Foundation for the Study of Cycles — an organization explicitly dedicated to cataloguing every prior instance of cyclic thinking across history — didn't know about Playfair until a reader pointed it out in the mid-1950s, nearly 150 years after Playfair's book was published.

2. The comparison to Petrie is the whole point. Dewey had praised Petrie's 1911 Revolutions of Civilization as an early, clear-eyed treatment of long civilizational cycles. Moore's letter is essentially saying: "You're a century too late crediting the right pioneer." Playfair's 1805 work covers the same conceptual ground — the rise and fall of powerful nations, illustrated graphically — but did it first.

3. Playfair's real historical significance is bigger than this letter suggests. Outside the cycles literature entirely, Playfair (1759–1823) is now generally credited as the inventor of several fundamental statistical chart types — the line graph, bar chart, and pie chart — making him a founding figure of data visualization itself, decades before these became standard tools. None of that appears in the archive; the Foundation's interest in him is narrowly about the "decline and fall" cyclic thesis, not his innovations in graphical statistics. This background is not sourced from Cycles Magazine — it comes from general historical knowledge and should be verified independently before you post it, but it may be worth including on your forum since it substantially raises Playfair's importance beyond what the magazine itself captured.

4. The reprinted chart itself is not captured in extractable text in the currently loaded volume — the index simply notes "Universal Commercial History, Chart of, by William Playfair," pages 176–77 of the 1956 volume. If you want the chart itself (which was apparently significant enough for the Foundation to reprint across two full pages), that would need a direct look at the page images rather than the text extraction, since charts don't survive OCR/text conversion.

Suggested Forum Angle

Given how little the Foundation itself said, the more interesting story for your readers may not be "what Playfair found" but "how a foundational figure gets lost even to the people whose entire job is remembering this stuff" — and how it took an ordinary reader with a private collection, not a professional cycles researcher, to correct the record.