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Published

December 6

vr.tr.december-6 · thing-q2303

Let an agent handle December 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 December 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 December 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 December 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 December 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

December 6, day 340 (day 341 in leap years) of the year in the Gregorian calendar, with 25 days remaining in both common and leap years. December 6 is Saint Nicholas Day celebrated with gifts in many European countries, Independence Day in Finland marking 1917, Constitution Day in Spain marking 1978, and the anniversary of the Halifax Explosion in 1917 and of the 1989 Ecole Polytechnique massacre in Montreal, commemorated in Canada as a day of remembrance for violence against women.

Why it exists Filled

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

Distinguishing features Filled

  • The sixth day of December
  • 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 Saint Nicholas customs from one country as universal.
  • Confuse the year of Finnish independence or the Spanish constitution.
  • List anniversaries of attacks or deaths on this date without sources or with intrusive detail.
  • Mix Julian and Gregorian dates for historical events without saying so.

Only with a human decision

  • Publishing an on-this-day item about a living person or victims of violence.

May

  • Report events and observances for December 6 with sources and the calendar used.
  • Describe Saint Nicholas Day, Finnish Independence Day and Spanish Constitution Day accurately.

Moral aspects Filled

  • Children's customs on this day carry family and religious meaning.
  • National days in Finland and Spain are politically meaningful to their citizens.

Who is affected

  • Children and families
  • Citizens of Finland and Spain
  • Readers

Owners Filled

Steward

Nobody: a calendar date held in common.

Links to other meta-models Filled

parent

  • Q11188173 - registry parent class

related

  • December - month
  • December 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.december-6
  • Wikidata: Q2303 (https://www.wikidata.org/wiki/Q2303)
  • ISO 8601: --12-06 recurring date

Direct properties not applicable Not applicable

  • day of year: 340 or 341 day - common year, leap year where different
  • days remaining: 25 days

Plane XCT: no invented physical properties.

Recognition optional Filled

  • Written 6 December or December 6
  • ISO format --12-06
  • 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 Q2303: December 6 - identity and sense of the item
  2. Wikipedia: December 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-q2303/spec.json