Wikidata:Property proposal/age at event

stated age at event

Originally proposed at Wikidata:Property proposal/Person

   Done: age of subject at event (P3629) (Talk and documentation)

Description	the age of the subject according to the cited source at the time of an event. Used as a qualifier of the event statement.
Represents	age of a person (Q185836)
Data type	Number (not available yet)
Domain	can be any animate, inanimate or fictional thing that can have an age
Allowed values	number (default years if no units)
Allowed units	years, months, weeks, days or longer/shorter
Example	To be used as a qualifier for any event. ⟨ Joonas Mäkinen (Q27982225)    ⟩ significant event (P793) ⟨ Municipal elections 2012 in Helsinki in Finland (Q28735596) ⟩ age at event Search ⟨ 24 ⟩ Another example ⟨ Joonas Mäkinen (Q27982225)    ⟩ candidacy in elections Search ⟨ Municipal elections 2012 in Helsinki in Finland (Q28735596) ⟩ electoral district (P768) ⟨ Helsinki (Q1757)    ⟩ represents (P1268) ⟨ Pirate Party (Q1459085)    ⟩ votes received (P1111) ⟨ 50 ⟩ candidate number (P4243) ⟨  147  ⟩ age at event Search ⟨ 24 ⟩
Planned use	To give the age of candidates in the Finnish municipal elections where the birth dates are not given. Can also be used with unprecise historical data.

Motivation

A property is needed to express the age of a person when no exact birth date is available. This can be in the case of living persons or historical documents where the data is unprecise. For example, the age of a mother can be given with the birth record of a baby. – Susanna Ånäs (Susannaanas) (talk) 11:10, 9 February 2017 (UTC)

Discussion

•  Support. "Age at event" is of course particularly common for records of deaths -- though not always 100% reliable. (Which leads to questions such as: are we recording what was written, or what we believe to be true -- eg if the stated age at death differs by a year or two from an identified birth date; perhaps the property might be labelled "stated age at event" to clarify this). Jheald (talk) 11:38, 9 February 2017 (UTC)
  • I'm OK with that idea, since I think this is always related to the statement. Let's change that when we have more opinions. – Susanna Ånäs (Susannaanas) (talk) 12:29, 9 February 2017 (UTC)

  "cited age" or "stated age", in English cited is more accurate, though "stated" may be more expected  — billinghurst sDrewth 12:42, 14 February 2017 (UTC)

•  Support ArthurPSmith (talk) 17:30, 9 February 2017 (UTC)
•  Support It seems to me that this could be used to specify the age of fictional characters, too - e.g. as qualifier with present in work (P1441). For that it could be useful to allow longer units (decades, centuries). Valentina.Anitnelav (talk)
•  Support ChristianKl (talk) 09:12, 10 February 2017 (UTC)
•  Comment I'd like to correct a little. I think instead of significant event (P793) any event should be allowed. Also, I think this could be used quite broadly with any temporal scale. – Susanna Ånäs (Susannaanas) (talk) 18:39, 12 February 2017 (UTC)
•  Support. Question not specific to this qualifier : how to manage a source stating an age and another source not having this data for the same event ? --Melderick (talk) 13:17, 13 February 2017 (UTC)
  • Isn't this an intriguing case! Both the event and the birth event are depending on some other data that will anchor them in time... – Susanna Ånäs (Susannaanas) (talk) 20:37, 13 February 2017 (UTC)
•  Support I was referencing some American citizenship records today and they had a point in time date, and cited an age. You can also get ages on marriages, passenger records, university alumnus.  — billinghurst sDrewth 12:40, 14 February 2017 (UTC)

  subsidiary question what would then be the qualifier to use on the "date of birth", noting that multiple years of birth would be fine as only one needs to be preferred.  — billinghurst sDrewth 12:40, 14 February 2017 (UTC)

  • Personally I would only add the stated age and compute the date of birth in my application, query etc. It is not a fact. I would leave it empty. – Susanna Ånäs (Susannaanas) (talk) 08:22, 15 February 2017 (UTC)
•  Comment Could we use this property for the age of a fictional character in a particular work? Often the age is given for fictional characters, but not the birth year.--Pharos (talk) 18:55, 14 February 2017 (UTC)
• I changed the name according to the proposal and expanded the scope. – Susanna Ånäs (Susannaanas) (talk) 08:19, 15 February 2017 (UTC)
• @Susannaanas, Jheald, billinghurst, Melderick, Pharos:@ChristianKl, ArthurPSmith, Valentina.Anitnelav:  Done--GZWDer (talk) 10:14, 16 February 2017 (UTC)