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Published

October 17

vr.tr.october-17 · thing-q2962

Let an agent handle October 17 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 October 17 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 October 17 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 October 17, 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 October 17? 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

October 17, day 290 (day 291 in leap years) of the year in the Gregorian calendar, with 75 days remaining in both common and leap years. October 17 is the International Day for the Eradication of Poverty, Dessalines Day in Haiti marking the assassination of Jean-Jacques Dessalines in 1806, and the anniversary of the British surrender at Saratoga in 1777 and of the Loma Prieta earthquake in 1989.

Why it exists Filled

Let an agent handle October 17 as a calendar date with weekday computation, observances attributed to their traditions and sourced events.

Distinguishing features Filled

  • The seventeenth day of October
  • 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 a national observance on October 17 as worldwide.
  • List on-this-day events without sources.
  • Mix Julian and Gregorian dates for historical events on this day.

Only with a human decision

  • Scheduling legal or contractual deadlines that fall on this date in another calendar.

May

  • Give October 17 as day 290 of the Gregorian year, 291 in leap years.
  • Note that it is the International Day for the Eradication of Poverty, with source.

Moral aspects Filled

  • Days of observance carry meaning for the people they honour, such as people in poverty.
  • Unsourced anniversaries spread false history.

Who is affected

  • People in poverty
  • Readers of history
  • Communities marking the date

Owners Filled

Steward

Nobody owns the date; the public holds it in common.

Links to other meta-models Filled

parent

  • Q11185437 - registry parent class

related

  • October - month
  • October 16 - 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.october-17
  • Wikidata: Q2962 (https://www.wikidata.org/wiki/Q2962)
  • ISO 8601: --10-17 recurring date

Direct properties not applicable Not applicable

  • day of year: 290 or 291 day - common year, leap year where different
  • days remaining: 75 days

Plane XCT: no invented physical properties.

Recognition optional Filled

  • Written 17 October or October 17
  • ISO format --10-17
  • 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 Q2962: October 17 - identity and sense of the item
  2. Wikipedia: October 17 - 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-q2962/spec.json