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October 4

vr.tr.october-4 · thing-q2929

Let an agent handle October 4 as a calendar date with day number, weekday computation, observances 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 October 4 fall in this year? measurement
  2. Is it a leap year? boundary

Format

Notation.

Format

Date format.

  1. How should the date be written for this audience? action
  2. Is ISO format needed? boundary
Observances Days of note.

World Animal Day

Observance.

Animals

World Animal Day.

  1. How is World Animal Day marked, and by which organisations? provenance
  2. Is it an official holiday anywhere? provenance

Religious

Saint Francis.

Religious

Feast day.

  1. Which churches observe the feast of Saint Francis on this date? provenance
  2. How is it marked? definition
History Past events.

Events

On this day.

Events

Historical events.

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

Space

Sputnik 1.

Space

Space history.

  1. What is the significance of the 1957 Sputnik 1 launch? provenance
  2. Is World Space Week linked to it? provenance
Planning Scheduling.

Countdown

Days until.

Countdown

Countdown.

  1. How many days until the next October 4? measurement
  2. From which date? definition

Anniversaries

Recurring.

Anniversaries

Anniversaries.

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

Classifiers Filled

Family
Thing Registry
Category
Cross-cutting context
Entry kind
thing
Plane
XCT
Domain
XCT.TME
Other names and narrower kinds
October 4, 1926

What it is Filled

The 277th day of the year in the Gregorian calendar (278th in leap years), with 88 days remaining; observed as World Animal Day and the feast of Saint Francis of Assisi, and the date Sputnik 1 was launched in 1957.

Why it exists Filled

Let an agent handle October 4 as a calendar date with day number, weekday computation, observances and sourced events.

Distinguishing features Filled

  • World Animal Day
  • Feast of Saint Francis in Western Christianity
  • Launch of Sputnik 1 in 1957
  • Weekday varies by year

What robots and AI may and may not do Filled

Must not

  • Attribute a birth, death or event to October 4 without a reliable source.
  • Mix up Julian and Gregorian dates when assigning historical events to October 4.
  • Present a religious feast or observance as universal or official where it is not.

Only with a human decision

  • Publishing anniversary content about tragedies or victims.

May

  • List events, observances and anniversaries on October 4 with their sources.
  • Schedule reminders and deadlines falling on October 4 for the user.

Moral aspects Filled

  • The date's feast of Saint Francis and World Animal Day carry religious and welfare meaning.
  • Anniversaries can be painful for those affected by past events.

Who is affected

  • People commemorating the date
  • Readers of history

Owners Filled

Steward

Nobody: a calendar date is held in common.

Links to other meta-models Filled

parent

  • Q11187901 - registry parent class

related

  • October - month
  • calendar date - category
  • World Animal Day - observance
  • ISO 8601 - notation

What else AI and robots need to interact with it Filled

Identity and identifiers required Filled

  • Vercy registry: vr.tr.october-4
  • Wikidata: Q2929 (https://www.wikidata.org/wiki/Q2929)
  • ISO 8601: --10-04 recurring date

Direct properties not applicable Not applicable

  • day of year: 277 or 278 day - common or leap year
  • days remaining: 88 days

Plane XCT: no invented physical properties.

Recognition optional Filled

  • Written 4 October or October 4
  • ISO format --10-04
  • Specific years such as October 4, 1926 are separate
  • A date on calendars.

Capabilities and actions required Filled

  • compute its weekday in a given year
  • list observances
  • find sourced historical events
  • schedule events

Hazards and failure modes required Filled

  • Day-month order confusion
  • Unsourced on-this-day events

Standards and interfaces required Filled

  • ISO 8601
  • National public holiday laws

Context of use required Filled

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

Sources Filled

  1. Wikidata item Q2929: October 4 - identity and sense of the item
  2. Wikipedia: October 4 - 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-q2929/spec.json