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Published

May 29

vr.tr.may-29 · thing-q2589

Let an agent handle May 29 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 May 29 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 May 29 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 May 29, 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 May 29? 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

May 29, day 149 (day 150 in leap years) of the year in the Gregorian calendar, with 216 days remaining in both common and leap years. May 29 is the International Day of United Nations Peacekeepers and the anniversary of the fall of Constantinople to the Ottoman Empire in 1453, of the first confirmed ascent of Mount Everest by Edmund Hillary and Tenzing Norgay in 1953 and of the restoration of Charles II in 1660, remembered in England as Oak Apple Day.

Why it exists Filled

Let an agent handle May 29 as a calendar date with weekday computation, observances attributed to their traditions and sourced events.

Distinguishing features Filled

  • The twenty-ninth day of May
  • 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 the 1453 conquest of Constantinople from only one community's perspective.
  • Credit the first Everest ascent to only one of the two climbers.
  • Convert the 1453 date between Julian and Gregorian reckoning without saying so.
  • Treat the UN observance as a public holiday.

Only with a human decision

  • Publishing commemorative material about peacekeepers who died in service.

May

  • Compute the weekday of May 29 in a given year.
  • Relay that May 29 is the International Day of United Nations Peacekeepers, attributed to the UN.
  • Relay events such as the 1453 fall of Constantinople and the 1953 Everest ascent with sources.

Moral aspects Filled

  • The fall of Constantinople is mourned by some communities and celebrated by others.
  • Peacekeepers' deaths deserve accurate and respectful remembrance.

Who is affected

  • Families of fallen peacekeepers
  • Greek and Turkish communities
  • Readers of date facts

Owners Filled

Steward

Nobody owns a calendar date; the UN declares its observance.

Links to other meta-models Filled

parent

  • Q11187374 - registry parent class

related

  • May - month
  • May 28 - 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.may-29
  • Wikidata: Q2589 (https://www.wikidata.org/wiki/Q2589)
  • ISO 8601: --05-29 recurring date

Direct properties not applicable Not applicable

  • day of year: 149 or 150 day - common year, leap year where different
  • days remaining: 216 days

Plane XCT: no invented physical properties.

Recognition optional Filled

  • Written 29 May or May 29
  • ISO format --05-29
  • 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 Q2589: May 29 - identity and sense of the item
  2. Wikipedia: May 29 - 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-q2589/spec.json