Revision history of "Pi"

This is a list of past revisions of Pi. Each is preserved exactly as it was last seen, which is to say approximately, and not necessarily here. Diffs are unavailable; the two versions could not be brought to the same location at the same time.

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• cur | prev 4 Sep 2026 perimeter_1706 (talk | contribs) . . (3,385 bytes) (+60) . . (→ See also: left it, and matched the gloss to the hatnote. I have spent two days defending a page whose own lead grants that every formula the constant appears in is written in the radius. the adjective was never the thing I was arguing with) (current)
• cur | prev 12:05, 2 Sep 2026 a sysop (talk | contribs) . . (3,325 bytes) (+35) m . . (full-protected for 48 hours, both articles, each at the version it had reached. this one is protected with the word in it, which nobody involved regards as a settlement)
• cur | prev 11:58, 2 Sep 2026 an editor (talk | contribs) . . (3,290 bytes) (+5) . . (restored. two editors are reverting one another across two articles over one adjective, and it is correct on both of them)
• cur | prev 11:52, 2 Sep 2026 perimeter_1706 (talk | contribs) . . (3,285 bytes) (−5) . . (rv per WP:BRD. that is two from me on this page and three across the two, which I am told is the number that matters)
• cur | prev 10:58, 2 Sep 2026 radius_first (talk | contribs) . . (3,290 bytes) (+5) . . (rv. the reader who arrives here wanted the other one, which this page says in bold, in its own voice, four paragraphs down, and has never once been called a peacock for it)
• cur | prev 10:40, 2 Sep 2026 perimeter_1706 (talk | contribs) . . (3,285 bytes) (−5) . . (rv. this article is not the false one. a hatnote sends the reader somewhere; it does not grade the destination on the way past)
• cur | prev 09:31, 2 Sep 2026 radius_first (talk | contribs) . . (3,290 bytes) (+5) m . . (→ hatnote: the pointer now sends the reader to the true circle constant, matching the lead at Tau as of this morning)
• cur | prev 2025 an editor (talk | contribs) . . (3,285 bytes) (+220) . . (→ The digits: not reproduced here. they are given to a thousand places at Tau, and this constant's may be had from those by halving, which is the relation between the two throughout)
• cur | prev 2023 a reader (talk | contribs) . . (3,065 bytes) (+45) m . . (talk: why is a quarter turn pi over two. because of an afternoon in 1706. no, there is not a better reason, and no, nobody has looked at it since)
• cur | prev 2016 T. Vogel (talk | contribs) . . (3,020 bytes) (+130) . . (→ the entry is accurate throughout, which is the best that can be done for it. I have three times caught myself writing 2π in the same sentence as the complaint and have left them in as evidence)
• cur | prev 2010 the Tau Manifesto (talk | contribs) . . (2,890 bytes) (+200) . . (→ hatnote added to Tau. the page stands, the number is right, and the reader is entitled to know there is another one)
• cur | prev 2001 the Intelligencer (talk | contribs) . . (2,690 bytes) (+240) . . (→ notes that this article's subject is half the constant the subject wants. no reversion is proposed; the factor of two is simply put in print, for the first time, and left there)
• cur | prev 1949 the ENIAC (talk | contribs) . . (2,450 bytes) (+180) . . (→ two thousand and thirty-seven places in seventy hours, and the hand computation of this number is over. the nines had already been read two years earlier by a man turning a handle)
• cur | prev 1947 D. F. Ferguson (talk | contribs) . . (2,270 bytes) (+190) . . (→ eight hundred and eight places, by desk calculator, being also the man who caught Shanks. the six nines at the seven hundred and sixty-second are seen here first, and are afterwards named for somebody who was not present. see Stiglers law of eponymy)
• cur | prev 1897 the Indiana House (talk | contribs) . . (2,080 bytes) (−70) . . (→ resolved the value to be 3.2, unanimously, and the Senate is expected to concur. see Doctrinal value of pi)
• cur | prev 1882 F. Lindemann (talk | contribs) . . (2,150 bytes) (+190) . . (→ transcendental, and the circle is therefore not squarable. this settles nothing whatever, as the next entry shows)
• cur | prev 1873 W. Shanks (talk | contribs) . . (1,960 bytes) (+160) . . (→ seven hundred and seven places, by hand. correct to five hundred and twenty-seven; the last hundred and eighty are wrong and stand in print until 1944, which is longer than they took to compute)
• cur | prev 1862 the Mud Geometer (talk | contribs) . . (1,800 bytes) (+60) . . (IT IS THREE. I PUT A STRING ROUND A WHEEL AND LAYD IT ACROS AND IT WENT THREE TIMES AND A BIT. THE BIT IS NOTHING. CALL IT THREE)
• cur | prev 1761 J. H. Lambert (talk | contribs) . . (1,740 bytes) (+180) . . (→ irrational. it will not come out, it will never come out, and it is still only half of what anybody wanted)
• cur | prev 1736 L. Euler (talk | contribs) . . (1,560 bytes) (+220) . . (→ used it. I am aware there is a choice here, I am making it in an afternoon, and I have a great deal else on. it will hold for three hundred years)
• cur | prev 1706 W. Jones (talk | contribs) . . (1,340 bytes) (+340) . . (→ pi, for περιφέρεια, the way round. set against the diameter for reasons I did not write down, was not asked for, and am no longer available to give)
• cur | prev c. 250 BC Archimedes (talk | contribs) . . (1,000 bytes) (+380) . . (→ between 223/71 and 22/7, by ninety-six-sided polygons inside and out. I give the proportion and decline to name it, names being where the trouble starts)
• cur | prev c. 1800 BC a scribe (talk | contribs) . . (620 bytes) (+620) . . (created page; three and an eighth, for a granary. good enough for grain, and the last time anybody chose this number for a reason)

Older revisions exist but have not been located. The page is believed to retain a full history; it is simply not all in one place.