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Published

September 14

vr.tr.september-14 · thing-q2847

Let an agent handle September 14 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 14 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 14 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 14, 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 14? 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 14, day 257 (day 258 in leap years) of the year in the Gregorian calendar, with 108 days remaining in both common and leap years. September 14 is the Feast of the Exaltation of the Holy Cross in Western and many Eastern Christian churches, Hindi Day in India marking the 1949 adoption of Hindi as an official language, and the anniversary of Francis Scott Key writing the poem that became The Star-Spangled Banner in 1814.

Why it exists Filled

Let an agent handle September 14 as a calendar date with weekday computation, observances attributed to their traditions and sourced events.

Distinguishing features Filled

  • The fourteenth 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 an unsourced on-this-day event as fact.
  • Give a September 14 feast without noting churches that keep it on the Julian calendar on a different civil date.
  • Assume an observance held on September 14 is kept everywhere.

Only with a human decision

  • Scheduling a binding deadline on September 14 where local holidays are not confirmed.

May

  • Compute the weekday and day of year for September 14 in a given Gregorian year.
  • Note observances such as the Exaltation of the Holy Cross and Hindi Day, citing sources.

Moral aspects Filled

  • The date carries religious meaning for Christians and language politics in India.
  • Language days can be contested by speakers of other languages.

Who is affected

  • Christian communities
  • Speakers of languages in India

Owners Filled

Steward

Nobody owns a calendar date.

Links to other meta-models Filled

parent

  • Q11185332 - registry parent class

related

  • September - month
  • September 13 - 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-14
  • Wikidata: Q2847 (https://www.wikidata.org/wiki/Q2847)
  • ISO 8601: --09-14 recurring date

Direct properties not applicable Not applicable

  • day of year: 257 or 258 day - common year, leap year where different
  • days remaining: 108 days

Plane XCT: no invented physical properties.

Recognition optional Filled

  • Written 14 September or September 14
  • ISO format --09-14
  • 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 Q2847: September 14 - identity and sense of the item
  2. Wikipedia: September 14 - 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-q2847/spec.json