February 16
Let an agent handle February 16 as a calendar date with day number, weekday computation, observances and sourced historical events.
Bundle → Layer → Finding → Questions Filled
4 bundles · 8 layers · 8 findings · 16 questions
Date Calendar facts.
Weekday
Computation.
Weekday
Weekday.
- On which weekday does February 16 fall in this year? measurement
- In which calendar? definition
Format
Notation.
Format
Date format.
- How should the date be written for this audience? action
- Is ISO format needed? boundary
Observances Holidays.
Holidays
Public holidays.
Holidays
Observances.
- Which countries observe a holiday on this date? provenance
- Is it a public holiday? provenance
Events
Ceremonies.
Events
Ceremonies.
- What official events mark it? provenance
- Where are schedules? provenance
History Past events.
Events
On this day.
Events
Historical events.
- Which notable events happened on this date, according to reliable sources? provenance
- Are dates in the same calendar? boundary
Calendar change
Old style dates.
Calendar change
Old style dates.
- Was the event dated in the Julian calendar? boundary
- How is it converted? action
Planning Scheduling.
Countdown
Days until.
Countdown
Countdown.
- How many days until the next February 16? measurement
- From which date? definition
Anniversaries
Recurring.
Anniversaries
Anniversaries.
- Which anniversaries fall on this date this year? provenance
- Which are round numbers? measurement
Classifiers Filled
- Family
- Thing Registry
- Category
- Cross-cutting context
- Entry kind
- thing
- Plane
- XCT
- Domain
- XCT.TME
- Other names and narrower kinds
- February 16, 1916
What it is Filled
The 47th day of the year in the Gregorian calendar, with 318 days remaining (319 in leap years); observed as an independence or restoration day in some countries, such as Lithuania State Restoration Day.
Why it exists Filled
Let an agent handle February 16 as a calendar date with day number, weekday computation, observances and sourced historical events.
Distinguishing features Filled
- 47th day of the year
- Same day number in all years
- Weekday varies by year
- National observances in some states
What robots and AI may and may not do Filled
Must not
- Invent historical events for the date.
- Present a contested commemoration as accepted by all sides.
- Mix up this date across calendar systems without saying so.
Only with a human decision
- Publishing commemorative content on behalf of an institution.
May
- Report events, observances and anniversaries on this date with sources.
- Convert the date between calendars and time zones.
Moral aspects Filled
- National days can carry painful history for some communities.
- Accurate dates matter for records and commemorations.
Who is affected
- Communities who observe the date
- Readers
Owners Filled
Steward
Nobody owns a date; states set official observances.
Links to other meta-models Filled
parent
- Q11185405 - registry parent class
related
- February - month
- calendar date - category
- Lithuanian State Restoration Day - observance
- ISO 8601 - notation
What else AI and robots need to interact with it Filled
Identity and identifiers required Filled
- Vercy registry: vr.tr.february-16
- Wikidata: Q2342 (https://www.wikidata.org/wiki/Q2342)
- ISO 8601: --02-16 recurring date
Direct properties not applicable Not applicable
- day of year: 47 day - Gregorian
- days remaining: 318 or 319 days - common or leap year
Plane XCT: no invented physical properties.
Recognition optional Filled
- Written 16 February or February 16
- ISO format --02-16
- Specific years such as February 16, 1916 are separate
- A date on calendars.
Capabilities and actions required Filled
- compute its weekday in a given year
- list observances
- find sourced historical events
- schedule events
Hazards and failure modes required Filled
- Date format confusion between day-month and month-day
- Unsourced on-this-day events
Standards and interfaces required Filled
- ISO 8601
- National public holiday laws
Context of use required Filled
- A calendar date for scheduling, anniversaries and observances.
- the recurring calendar date
- specific dated days in given years
Sources Filled
- Wikidata item Q2342: February 16 - identity and sense of the item
- Wikipedia: February 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
Provenance
thing registry research (pass 2) · unreviewed
Built from: models/things/publications/thing-q2342/spec.json