Event

• CURIE: gmeow:Event
• IRI: https://blackcatinformatics.ca/gmeow/Event
• Category: class
• Defined by: gmeow:slices/events
• Box roles: TBox role (What is this?)

A temporal occurrence in which entities participate in roles, over possibly fuzzy time, at possibly several locations, asserted by possibly conflicting sources. The universal event of the model: gmeow:Activity (provenance) and gmeow:LifeEvent re-parent onto it. The kind of occurrence is a gmeow:eventType value, never a subclass.

Structure

Subclass of: gufo:Event

Practical Pattern

Use gmeow:Event as a specialized kind of gufo:Event. Add statement metadata or a standpoint when the assertion needs provenance, confidence, or vantage.

Example Snippets

These snippets are generated from canonical slice examples and trimmed to the Turtle blocks where this term appears.

Wedding

• Source: slices/core/events/examples/wedding.ttl
• Examples catalog: open in catalog#example-slices-core-events-examples-wedding

ex:wedding a gmeow:Event ;
    rdfs:label "the marriage of Alex and Sam"@en ;
    gmeow:eventType gmeow:eventTypeMarriage ;
    gmeow:eventTime "2026-06-20T15:00:00Z"^^xsd:dateTime ;
    gmeow:eventTemporalFrame gmeow:temporalFrameUTCGregorian ;
    gmeow:eventLocation ex:chapel ;
    # Flat participation for the witnesses ONLY — no role/period/evidence needed.
    # The principals and the officiant are instead reified below (with roles), so
    # they are deliberately NOT repeated here: flat and reified never overlap.
    gmeow:hasParticipant ex:witnessA , ex:witnessB .

Recurring Meeting

• Source: slices/core/calendar/examples/recurring-meeting.ttl
• Examples catalog: open in catalog#example-slices-core-calendar-examples-recurring-meeting

# SPDX-FileCopyrightText: 2026 Blackcat Informatics® Inc. <paudley@blackcatinformatics.ca>
# SPDX-License-Identifier: CC-BY-4.0
#
# Worked example: a recurring meeting with invitations. A gmeow:EventSchedule
# repeats a TEMPLATE event by a gmeow:RecurrenceRule (an RFC 5545 RRULE string),
# all anchored in an explicit gmeow:TimeZone (IANA id) — so "every Monday 09:00"
# is unambiguous across DST. Invitations are reified gmeow:EventInvitations
# carrying both the organiser-side gmeow:invitationStatus and the invitee's own
# gmeow:rsvpStatus. The event's kind is an open vocabulary: there is no seed
# "meeting" EventType, so one is minted (the custom-value idiom, P9).
@prefix gmeow: <https://blackcatinformatics.ca/gmeow/> .
@prefix ex:    <https://blackcatinformatics.ca/gmeow/examples/calendar/> .
@prefix rdfs:  <http://www.w3.org/2000/01/rdf-schema#> .
@prefix xsd:   <http://www.w3.org/2001/XMLSchema#> .

# --- A minted event kind (open vocabulary — no closed enum of event types).
ex:eventTypeTeamMeeting a gmeow:EventType ; rdfs:label "team meeting"@en .

Projects To

External Equivalences

Equivalent or closely aligned targets: bbc, crm, dcmitype, ical, lode, org, prov, schema, sem, wd

Linkages

Generated from the canonical mapping DSL. SSSOM files are the generated public interchange form for term equivalences.

Term Equivalences

Projection Coverage

Usage Advice

Use when

• Use as the universal occurrent whenever something HAPPENS — a wedding, a release, a survey, a battle — that bears participants, a time, a location, or sub-events; the single anchor for the four orthogonal event axes (type ⟂ role ⟂ temporal ⟂ location).

Avoid when

• Avoid typing an endurant as an Event (a person/document/place is a gmeow:Entity, not an occurrence), avoid minting an event-kind SUBCLASS (the kind is a gmeow:eventType value, Principle 9), and reach for gmeow:Activity when the occurrence is an agent-driven provenance act with inputs and outputs.

How to use

• Type the occurrence gmeow:Event, give it one or more gmeow:eventType values, anchor it in time (gmeow:eventTime / gmeow:eventInterval, or fuzzy gmeow:earliestStart + gmeow:latestEnd + gmeow:temporalPrecision), place it with gmeow:eventLocation, and add participants flat via gmeow:hasParticipant or reified as gmeow:Participation; carry a non-default frame on gmeow:eventTemporalFrame (Principle 11).

Examples

• ex:wedding a gmeow:Event; gmeow:eventType gmeow:eventTypeMarriage; gmeow:eventTime "1947-06-14T11:00:00Z"^^xsd:dateTime; gmeow:eventLocation ex:church.