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Published

September 6

vr.tr.september-6 · thing-q2858

Let an agent handle September 6 as a calendar date with weekday computation, observances attributed to their traditions and sourced events.

Thing Registry Cross-cutting context XCT.TME
Bundle → Layer → Finding → QuestionsClassifiersWhat it isWhy it existsDistinguishing featuresWhat robots and AI may and may not doMoral aspectsOwnersLinks to other meta-modelsIdentity and identifiersDirect propertiesRecognitionCapabilities and actionsHazards and failure modesStandards and interfacesContext of useSources

Bundle → Layer → Finding → Questions Filled

4 bundles · 8 layers · 8 findings · 16 questions

Date Calendar facts.

Weekday

Computation.

Weekday

Weekday.

  1. On which weekday does September 6 fall in this year? measurement
  2. Is it a leap year? boundary

Calendar

Julian or Gregorian.

Calendar

Calendar system.

  1. Is the Julian or Gregorian calendar meant? boundary
  2. What is the equivalent date in the other calendar? measurement
Observances Holidays.

Holiday

Public holiday.

Holiday

Holiday status.

  1. Is September 6 a public holiday or observance here? provenance
  2. Which tradition or law sets it? provenance

Attribution

Traditions.

Attribution

Attributed observances.

  1. Which countries or communities observe something on this date, according to them? provenance
  2. Is the observance attributed rather than assumed? boundary
History Past events.

Events

On this day.

Events

Historical events.

  1. Which notable events happened on September 6, according to reliable sources? provenance
  2. Are dates given in the same calendar? boundary

Anniversaries

Recurring.

Anniversaries

Anniversaries.

  1. Which anniversaries fall on this date this year? provenance
  2. Which are round numbers? measurement
Planning Scheduling.

Countdown

Days until.

Countdown

Countdown.

  1. How many days until the next September 6? measurement
  2. From which date? definition

Work

Working day.

Work

Working day.

  1. Is it a working day for this organisation? provenance
  2. Do deadlines move? boundary

Classifiers Filled

Family
Thing Registry
Category
Cross-cutting context
Entry kind
thing
Plane
XCT
Domain
XCT.TME

What it is Filled

September 6, day 249 (day 250 in leap years) of the year in the Gregorian calendar, with 116 days remaining in both common and leap years. September 6 is Independence Day in Eswatini marking 1968, Defence Day in Pakistan commemorating the 1965 war as observed there, Unification Day in Bulgaria marking 1885, the anniversary of the Mayflower departing Plymouth on September 6, 1620 in the Julian calendar (September 16 in the Gregorian calendar), of the end of Magellan s expedition s circumnavigation in 1522 and of the shooting of US president William McKinley in Buffalo in 1901.

Why it exists Filled

Let an agent handle September 6 as a calendar date with weekday computation, observances attributed to their traditions and sourced events.

Distinguishing features Filled

  • The sixth day of September
  • Weekday varies by year
  • Observances vary by place
  • Julian and Gregorian dates differ by 13 days in this era

What robots and AI may and may not do Filled

Must not

  • Present one side's account of the 1965 war as neutral through the observance.
  • Treat the holidays of Eswatini, Pakistan or Bulgaria as universal.
  • Repeat events attributed to September 6 without a source.
  • Mix calendars for early modern events without saying which.

Only with a human decision

  • Publishing content about a contested national observance.

May

  • State the position of September 6 in the Gregorian year and its sourced observances.
  • Attribute contested observances such as Defence Day in Pakistan to those who observe them.

Moral aspects Filled

  • Commemorations of war carry rival narratives between neighbours.
  • Errors in dates spread widely through on-this-day content.

Who is affected

  • Communities observing the date
  • Readers in neighbouring countries

Owners Filled

Steward

Nobody owns a date; the Gregorian calendar is held in common.

Links to other meta-models Filled

parent

  • Q11188173 - registry parent class

related

  • September - month
  • September 5 - date
  • calendar date - category
  • ISO 8601 - notation

What else AI and robots need to interact with it Filled

Identity and identifiers required Filled

  • Vercy registry: vr.tr.september-6
  • Wikidata: Q2858 (https://www.wikidata.org/wiki/Q2858)
  • ISO 8601: --09-06 recurring date

Direct properties not applicable Not applicable

  • day of year: 249 or 250 day - common year, leap year where different
  • days remaining: 116 days

Plane XCT: no invented physical properties.

Recognition optional Filled

  • Written 6 September or September 6
  • ISO format --09-06
  • Observances vary by country and tradition
  • A date on calendars.

Capabilities and actions required Filled

  • compute its weekday in a given year
  • check local and international observances
  • find sourced historical events
  • schedule events

Hazards and failure modes required Filled

  • Assuming observances are universal
  • Unsourced on-this-day events
  • Mixing Julian and Gregorian dates

Standards and interfaces required Filled

  • ISO 8601
  • National public holiday laws

Context of use required Filled

  • A calendar date for scheduling, holidays and anniversaries.
  • the recurring calendar date
  • specific dated days in given years

Sources Filled

  1. Wikidata item Q2858: September 6 - identity and sense of the item
  2. Wikipedia: September 6 - general description of the item

Open questions

  • Should dated days be separate entries?
  • How should observances be linked?
  • How should events be sourced?

Machine files

Card as JSON Specification Card backlog vercy.card/1

Provenance

thing registry research (pass 2) · unreviewed

Built from: models/things/publications/thing-q2858/spec.json