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Published

September 16

vr.tr.september-16 · thing-q2897

Let an agent handle September 16 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 16 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 16 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 16, 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 16? 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 16, day 259 (day 260 in leap years) of the year in the Gregorian calendar, with 106 days remaining in both common and leap years. September 16 is Independence Day in Mexico marking the Cry of Dolores in 1810, Independence Day in Papua New Guinea marking 1975, Malaysia Day marking the federation of 1963, and the International Day for the Preservation of the Ozone Layer, designated by the UN in recognition of the Montreal Protocol signed on this day in 1987.

Why it exists Filled

Let an agent handle September 16 as a calendar date with weekday computation, observances attributed to their traditions and sourced events.

Distinguishing features Filled

  • The sixteenth 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

  • Treat Mexican independence celebrations as observed in other countries.
  • Confuse Mexican Independence Day with the Cinco de Mayo battle anniversary.
  • Report on-this-day events without a reliable source.

Only with a human decision

  • Planning public events or deadlines around national holidays in a given country.

May

  • Compute the weekday and day of year for September 16 in a given year.
  • Explain that September 16 is Mexican Independence Day, with the Cry of Dolores observed on the night before.

Moral aspects Filled

  • Independence days carry national pride and must be described accurately.
  • Stereotyped portrayals of national celebrations disrespect the people who hold them.

Who is affected

  • People of Mexico and its diaspora
  • Event planners and travellers

Owners Filled

Steward

Nobody owns a date; national holidays are set by each state's law.

Links to other meta-models Filled

parent

  • Q11185405 - registry parent class

related

  • September - month
  • September 15 - 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-16
  • Wikidata: Q2897 (https://www.wikidata.org/wiki/Q2897)
  • ISO 8601: --09-16 recurring date

Direct properties not applicable Not applicable

  • day of year: 259 or 260 day - common year, leap year where different
  • days remaining: 106 days

Plane XCT: no invented physical properties.

Recognition optional Filled

  • Written 16 September or September 16
  • ISO format --09-16
  • 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 Q2897: September 16 - identity and sense of the item
  2. Wikipedia: September 16 - 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-q2897/spec.json