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Published

May 28

vr.tr.may-28 · thing-q2588

Let an agent handle May 28 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 28 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 28 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 28, 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 28? 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 28, day 148 (day 149 in leap years) of the year in the Gregorian calendar, with 217 days remaining in both common and leap years. May 28 is Independence Day in Azerbaijan, formerly named Republic Day, marking the establishment of its republic in 1918; it also marks the 1991 downfall of the Derg in Ethiopia, Republic Day in Armenia commemorating its first republic in 1918, and the anniversary of the founding of Amnesty International in 1961.

Why it exists Filled

Let an agent handle May 28 as a calendar date with weekday computation, observances attributed to their traditions and sourced events.

Distinguishing features Filled

  • The twenty-eighth 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

  • Take sides in the Armenia-Azerbaijan conflict when describing their national days.
  • Present a national day of one country as observed elsewhere.
  • Convert 1918 dates between calendars without saying which calendar is used.
  • Add on-this-day events without a source.

Only with a human decision

  • Publishing commemorative content for national days of countries in conflict.

May

  • Report May 28 as day 148, or 149 in leap years, of the Gregorian calendar.
  • Relay national days on May 28, such as those of Azerbaijan, Armenia and Ethiopia, with their origin.

Moral aspects Filled

  • National days of neighbouring countries in conflict must be treated with balance.
  • Commemoration of the fall of the Derg touches on victims of repression.

Who is affected

  • Armenians
  • Azerbaijanis
  • Ethiopians

Owners Filled

Steward

Nobody owns a date; the Gregorian calendar is held in common.

Links to other meta-models Filled

parent

  • Q11187366 - registry parent class

related

  • May - month
  • May 27 - 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-28
  • Wikidata: Q2588 (https://www.wikidata.org/wiki/Q2588)
  • ISO 8601: --05-28 recurring date

Direct properties not applicable Not applicable

  • day of year: 148 or 149 day - common year, leap year where different
  • days remaining: 217 days

Plane XCT: no invented physical properties.

Recognition optional Filled

  • Written 28 May or May 28
  • ISO format --05-28
  • 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 Q2588: May 28 - identity and sense of the item
  2. Wikipedia: May 28 - 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-q2588/spec.json