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Published

October 30

vr.tr.october-30 · thing-q2950

Let an agent handle October 30 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 30 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 30 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 30, 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 30? 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 30, day 303 (day 304 in leap years) of the year in the Gregorian calendar, with 62 days remaining in both common and leap years. October 30 is the anniversary of the 1938 War of the Worlds radio broadcast by Orson Welles, of the Mudros armistice ending Ottoman participation in the First World War in 1918, of the Tsar Bomba test in 1961 and, in 1974, of the Rumble in the Jungle boxing match in Kinshasa.

Why it exists Filled

Let an agent handle October 30 as a calendar date with weekday computation, observances attributed to their traditions and sourced events.

Distinguishing features Filled

  • The thirtieth 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

  • Repeat the 1938 broadcast-panic story as fact without noting that its scale is disputed.
  • Present events of the Hungarian revolution of 1956 inaccurately or one-sidedly.
  • Schedule deadlines on October 30 without checking local holidays or clock changes near that date.

Only with a human decision

  • Fixing legal or contractual deadlines near the date in jurisdictions with time changes.

May

  • Compute day numbers and dates around October 30 and convert between calendars.
  • List events and anniversaries on October 30 with their sources.

Moral aspects Filled

  • Anniversaries of war, assassinations and nuclear tests on this date touch on grief and fear.
  • Myths about past events spread easily when dates are cited without sources.

Who is affected

  • Communities marking anniversaries
  • People with deadlines
  • Readers

Owners Filled

Steward

Nobody owns a calendar date; it is held in common.

Links to other meta-models Filled

parent

  • Q11187571 - registry parent class

related

  • October - month
  • October 29 - 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-30
  • Wikidata: Q2950 (https://www.wikidata.org/wiki/Q2950)
  • ISO 8601: --10-30 recurring date

Direct properties not applicable Not applicable

  • day of year: 303 or 304 day - common year, leap year where different
  • days remaining: 62 days

Plane XCT: no invented physical properties.

Recognition optional Filled

  • Written 30 October or October 30
  • ISO format --10-30
  • 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 Q2950: October 30 - identity and sense of the item
  2. Wikipedia: October 30 - 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-q2950/spec.json