The record
Bulletin
What the corpus turns up, published when there is something and silent when there is not. Every entry rests on an instrument someone read; nothing here is researched for the Bulletin.
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A fire festival four days after the new year it precedes
Two Iranian provinces held the same festival five days apart, and one of them had it falling after the event it leads up to. Both dates were symptoms. The fault was a rule that could not express the rule.
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Alderney takes the first Monday, and there is no way to say so
A subdivision inherits its parent's calendar and may add to it. It cannot decline a day. Three territories hit that wall in a single afternoon, and the honest response was to publish the contradiction rather than tidy it.
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Nine minutes from midnight in Beijing
The Chinese calendar was being approximated with an average month length. It works until a leap month, and then a hundred and twenty-five dates across twenty-five jurisdictions are wrong, one of them in the wrong year.
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Nepal runs out on 13 April 2027
A country's entire calendar rests on one annual notice, published as a twelve-page scan, dated in a calendar the engine cannot compute. Reading it was the easy part. Knowing when the next one arrives is the finding.
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The citation resolved, and it was about poultry
Twelve Danish holidays cited a government URL that returns HTTP 200. It is an avian influenza order for a municipality in Jutland. No automated check can catch that, and only one thing can.
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We did not know where the weekend is
A country page drew a Saturday–Sunday weekend for Saudi Arabia — on the page a reader visits to learn that Saudi Arabia rests on Friday and Saturday. The assumption was not in that chart. It was underneath everything.
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One full moon, three answers
Mid-Autumn is a single full moon and our records resolved it to three different dates. One of the three was legitimate. Finding the other two needed no external source at all — a corpus contradicting itself is evidence on its own.
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India declares fourteen nationwide closures. Three are national.
In India, "closed" has four separate authorities, three of which issue a new answer every year. A calendar with one row per holiday cannot tell you which one it is quoting.
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The law is public unless you are in the wrong country
A Mexican state legislature returned a plain-text refusal: your location has been blacklisted. It was not bot detection. It was geography, and it means the word "blocked" in a research record is not a fact until you say from where.
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Some countries pass a law. Others send a notice.
One instrument settles a country's holidays for a decade. Another settles them until December. The distinction predicts almost everything about keeping a calendar accurate, and almost nobody models it.
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You cannot search for what you did not think of
A dataset assembled from the open web inherits the shape of that web without anyone choosing it. No validator catches the result, because nothing is malformed — the record is consistent, correctly sourced, and missing most of the festival.
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A bank in Whitehorse closes and the shop next door does not
Boxing Day is a statutory holiday under Canadian federal law and, among the provinces, only in Ontario. Both facts are true at once, and a calendar with one row for Canada cannot hold them.
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Ascension keeps six public holidays and none of them are British
An island named after a feast day was recorded as not keeping it. Three South Atlantic territories share a government and legislate three different calendars, and none of the three is the United Kingdom's.
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Where is an equinox?
The March 2027 equinox falls on 20 March in London and 21 March in Tokyo. It is the same instant. We computed it correctly and then dated it in the wrong place, and so does most software that touches this.
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Mawlid an-Nabi 2026: there is no single date
Thirty-seven jurisdictions appoint the Prophet's birthday and they will not all keep it on the same day. The divergence is visible in the laws themselves, before any announcement is made.